38972162709 has 12 divisors (see below), whose sum is σ = 58109031552. Its totient is φ = 25143330600.

The previous prime is 38972162699. The next prime is 38972162753. The reversal of 38972162709 is 90726127983.

38972162709 is a `hidden beast` number, since 3 + 8 + 9 + 7 + 2 + 1 + 627 + 0 + 9 = 666.

It is not a de Polignac number, because 38972162709 - 2²⁸ = 38703727253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38972162809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69842307 + ... + 69842864.

It is an arithmetic number, because the mean of its divisors is an integer number (4842419296).

Almost surely, 2^38972162709 is an apocalyptic number.

It is an amenable number.

38972162709 is a deficient number, since it is larger than the sum of its proper divisors (19136868843).

38972162709 is a wasteful number, since it uses less digits than its factorization.

38972162709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139685208 (or 139685205 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The spelling of 38972162709 in words is "thirty-eight billion, nine hundred seventy-two million, one hundred sixty-two thousand, seven hundred nine".