38972651125 has 8 divisors (see below), whose sum is σ = 48637868760. Its totient is φ = 31178120800.

The previous prime is 38972651033. The next prime is 38972651141. The reversal of 38972651125 is 52115627983.

It can be written as a sum of positive squares in 4 ways, for example, as 264843076 + 38707808049 = 16274^2 + 196743^2 .

It is a de Polignac number, because none of the positive numbers 2^k-38972651125 is a prime.

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, 155890480 + ... + 155890729.

It is an arithmetic number, because the mean of its divisors is an integer number (6079733595).

Almost surely, 2^38972651125 is an apocalyptic number.

It is an amenable number.

38972651125 is a deficient number, since it is larger than the sum of its proper divisors (9665217635).

38972651125 is an equidigital number, since it uses as much as digits as its factorization.

38972651125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311781224 (or 311781214 counting only the distinct ones).

The product of its digits is 907200, while the sum is 49.

The spelling of 38972651125 in words is "thirty-eight billion, nine hundred seventy-two million, six hundred fifty-one thousand, one hundred twenty-five".