865450810764 has 24 divisors (see below), whose sum is σ = 2243761361520. Its totient is φ = 288483603552.

The previous prime is 865450810729. The next prime is 865450810789. The reversal of 865450810764 is 467018054568.

865450810764 is a `hidden beast` number, since 8 + 6 + 54 + 508 + 10 + 76 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 865450810764.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4006716609 + ... + 4006716824.

It is an arithmetic number, because the mean of its divisors is an integer number (93490056730).

Almost surely, 2^865450810764 is an apocalyptic number.

It is an amenable number.

865450810764 is an abundant number, since it is smaller than the sum of its proper divisors (1378310550756).

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

865450810764 is a wasteful number, since it uses less digits than its factorization.

865450810764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8013433446 (or 8013433438 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 54.

The spelling of 865450810764 in words is "eight hundred sixty-five billion, four hundred fifty million, eight hundred ten thousand, seven hundred sixty-four".