3868172855952 has 40 divisors (see below), whose sum is σ = 9993604308864. Its totient is φ = 1289284573824.

The previous prime is 3868172855929. The next prime is 3868172855959. The reversal of 3868172855952 is 2595582718683.

It is a super-2 number, since 2×3868172855952² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3868172855959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2735383 + ... + 3901110.

Almost surely, 2^{3868172855952} is an apocalyptic number.

It is an amenable number.

3868172855952 is an abundant number, since it is smaller than the sum of its proper divisors (6125431452912).

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

3868172855952 is a wasteful number, since it uses less digits than its factorization.

3868172855952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6648647 (or 6648641 counting only the distinct ones).

The product of its digits is 290304000, while the sum is 69.

The spelling of 3868172855952 in words is "three trillion, eight hundred sixty-eight billion, one hundred seventy-two million, eight hundred fifty-five thousand, nine hundred fifty-two".