3129873523972 has 48 divisors (see below), whose sum is σ = 6216010520832. Its totient is φ = 1368069436800.

The previous prime is 3129873523859. The next prime is 3129873523979. The reversal of 3129873523972 is 2793253789213.

It is a super-2 number, since 2×3129873523972² (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 3129873523972.

It is not an unprimeable number, because it can be changed into a prime (3129873523979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12834408 + ... + 13075999.

It is an arithmetic number, because the mean of its divisors is an integer number (129500219184).

Almost surely, 2^{3129873523972} is an apocalyptic number.

It is an amenable number.

3129873523972 is a deficient number, since it is larger than the sum of its proper divisors (3086136996860).

3129873523972 is a wasteful number, since it uses less digits than its factorization.

3129873523972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25910548 (or 25910546 counting only the distinct ones).

The product of its digits is 34292160, while the sum is 61.

The spelling of 3129873523972 in words is "three trillion, one hundred twenty-nine billion, eight hundred seventy-three million, five hundred twenty-three thousand, nine hundred seventy-two".