65864172492 has 60 divisors (see below), whose sum is σ = 172803788080. Its totient is φ = 21875435424.

The previous prime is 65864172487. The next prime is 65864172529. The reversal of 65864172492 is 29427146856.

65864172492 is a `hidden beast` number, since 6 + 5 + 86 + 4 + 1 + 72 + 492 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 277192 + ... + 456687.

Almost surely, 2^65864172492 is an apocalyptic number.

It is an amenable number.

65864172492 is an abundant number, since it is smaller than the sum of its proper divisors (106939615588).

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

65864172492 is a wasteful number, since it uses less digits than its factorization.

65864172492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734172 (or 734161 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The spelling of 65864172492 in words is "sixty-five billion, eight hundred sixty-four million, one hundred seventy-two thousand, four hundred ninety-two".