3896685952972 has 24 divisors (see below), whose sum is σ = 6857504886960. Its totient is φ = 1937399504640.

The previous prime is 3896685952921. The next prime is 3896685952997. The reversal of 3896685952972 is 2792595866983.

It is a super-2 number, since 2×3896685952972² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3896685952892 and 3896685952901.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32401272 + ... + 32521312.

It is an arithmetic number, because the mean of its divisors is an integer number (285729370290).

Almost surely, 2^{3896685952972} is an apocalyptic number.

It is an amenable number.

3896685952972 is a deficient number, since it is larger than the sum of its proper divisors (2960818933988).

3896685952972 is a wasteful number, since it uses less digits than its factorization.

3896685952972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165561 (or 165559 counting only the distinct ones).

The product of its digits is 3527193600, while the sum is 79.

The spelling of 3896685952972 in words is "three trillion, eight hundred ninety-six billion, six hundred eighty-five million, nine hundred fifty-two thousand, nine hundred seventy-two".