865260604845 has 48 divisors (see below), whose sum is σ = 1845889299072. Its totient is φ = 365120956800.

The previous prime is 865260604843. The next prime is 865260604867. The reversal of 865260604845 is 548406062568.

865260604845 is a `hidden beast` number, since 8 + 6 + 5 + 26 + 0 + 604 + 8 + 4 + 5 = 666.

It is not a de Polignac number, because 865260604845 - 2¹ = 865260604843 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 865260604791 and 865260604800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (865260604843) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 105644331 + ... + 105652520.

It is an arithmetic number, because the mean of its divisors is an integer number (38456027064).

Almost surely, 2^865260604845 is an apocalyptic number.

It is an amenable number.

865260604845 is an abundant number, since it is smaller than the sum of its proper divisors (980628694227).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

865260604845 is a wasteful number, since it uses less digits than its factorization.

865260604845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211296882 (or 211296879 counting only the distinct ones).

The product of its (nonzero) digits is 11059200, while the sum is 54.

The spelling of 865260604845 in words is "eight hundred sixty-five billion, two hundred sixty million, six hundred four thousand, eight hundred forty-five".