3864725125656 has 32 divisors (see below), whose sum is σ = 9752110136640. Its totient is φ = 1276202065568.

The previous prime is 3864725125631. The next prime is 3864725125673. The reversal of 3864725125656 is 6565215274683.

It is a super-2 number, since 2×3864725125656² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3864725125656.

It is a congruent number.

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, 752475066 + ... + 752480201.

It is an arithmetic number, because the mean of its divisors is an integer number (304753441770).

Almost surely, 2^{3864725125656} is an apocalyptic number.

It is an amenable number.

3864725125656 is an abundant number, since it is smaller than the sum of its proper divisors (5887385010984).

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

3864725125656 is a wasteful number, since it uses less digits than its factorization.

3864725125656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504955383 (or 1504955379 counting only the distinct ones).

The product of its digits is 72576000, while the sum is 60.

The spelling of 3864725125656 in words is "three trillion, eight hundred sixty-four billion, seven hundred twenty-five million, one hundred twenty-five thousand, six hundred fifty-six".