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78468365211788 = 2255193554464813
BaseRepresentation
bin10001110101110111010111…
…000010001101100010001100
3101021211111120021210010200202
4101311313113002031202030
540241111202443234123
6434515511435313032
722346103145202456
oct2165672702154214
9337744507703622
1078468365211788
1123003279550192
1289738408ab778
1334a26c578a526
141553c63b312d6
15911220193a28
hex475dd708d88c

78468365211788 has 12 divisors (see below), whose sum is σ = 137344520412960. Its totient is φ = 39227073665232.

The previous prime is 78468365211679. The next prime is 78468365211791. The reversal of 78468365211788 is 88711256386487.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1777210331 + ... + 1777254482.

It is an arithmetic number, because the mean of its divisors is an integer number (11445376701080).

Almost surely, 278468365211788 is an apocalyptic number.

It is an amenable number.

78468365211788 is a deficient number, since it is larger than the sum of its proper divisors (58876155201172).

78468365211788 is a wasteful number, since it uses less digits than its factorization.

78468365211788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3554470336 (or 3554470334 counting only the distinct ones).

The product of its digits is 867041280, while the sum is 74.

The spelling of 78468365211788 in words is "seventy-eight trillion, four hundred sixty-eight billion, three hundred sixty-five million, two hundred eleven thousand, seven hundred eighty-eight".

Divisors: 1 2 4 5519 11038 22076 3554464813 7108929626 14217859252 19617091302947 39234182605894 78468365211788