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78468642211762 = 2115577198906137
BaseRepresentation
bin10001110101110111100111…
…100010111000011110110010
3101021211112021121000012020001
4101311313213202320132302
540241112234401234022
6434515555132340214
722346113050516535
oct2165674742703662
9337745247005201
1078468642211762
1123003400945390
1289738b961466a
1334a273ac9453a
141553c8c838a1c
1591123965cb27
hex475de78b87b2

78468642211762 has 32 divisors (see below), whose sum is σ = 128812680103680. Its totient is φ = 35554007402880.

The previous prime is 78468642211753. The next prime is 78468642211763. The reversal of 78468642211762 is 26711224686487.

It is a super-2 number, since 2×784686422117622 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78468642211694 and 78468642211703.

It is not an unprimeable number, because it can be changed into a prime (78468642211763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4357558 + ... + 13263694.

It is an arithmetic number, because the mean of its divisors is an integer number (4025396253240).

Almost surely, 278468642211762 is an apocalyptic number.

78468642211762 is a deficient number, since it is larger than the sum of its proper divisors (50344037891918).

78468642211762 is a wasteful number, since it uses less digits than its factorization.

78468642211762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8907426.

The product of its digits is 86704128, while the sum is 64.

The spelling of 78468642211762 in words is "seventy-eight trillion, four hundred sixty-eight billion, six hundred forty-two million, two hundred eleven thousand, seven hundred sixty-two".

Divisors: 1 2 11 22 557 719 1114 1438 6127 7909 12254 15818 400483 800966 4405313 8810626 8906137 17812274 97967507 195935014 4960718309 6403512503 9921436618 12807025006 54567901399 70438637533 109135802798 140877275066 3566756464171 7133512928342 39234321105881 78468642211762