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1064806145809 = 72327672390207
BaseRepresentation
bin11110111111010110110…
…01000101111100010001
310202210110011121201211121
433133223121011330101
5114421210333131214
62133055403042241
7136633613621440
oct17375331057421
93683404551747
101064806145809
1138064434548a
12152449510381
137954566c793
1439773338d57
151ca70dcc424
hexf7eb645f11

1064806145809 has 16 divisors (see below), whose sum is σ = 1270290382848. Its totient is φ = 872692893072.

The previous prime is 1064806145773. The next prime is 1064806145833. The reversal of 1064806145809 is 9085416084601.

It is not a de Polignac number, because 1064806145809 - 217 = 1064806014737 is a prime.

It is a super-2 number, since 2×10648061458092 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1064806145839) 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, 749617 + ... + 1640590.

It is an arithmetic number, because the mean of its divisors is an integer number (79393148928).

Almost surely, 21064806145809 is an apocalyptic number.

It is an amenable number.

1064806145809 is a deficient number, since it is larger than the sum of its proper divisors (205484237039).

1064806145809 is a wasteful number, since it uses less digits than its factorization.

1064806145809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2393004.

The product of its (nonzero) digits is 1658880, while the sum is 52.

The spelling of 1064806145809 in words is "one trillion, sixty-four billion, eight hundred six million, one hundred forty-five thousand, eight hundred nine".

Divisors: 1 7 23 161 2767 19369 63641 445487 2390207 16731449 54974761 384823327 6613702769 46295919383 152115163687 1064806145809