39971492156 has 12 divisors (see below), whose sum is σ = 70025413920. Its totient is φ = 19964231040.

The previous prime is 39971492059. The next prime is 39971492159. The reversal of 39971492156 is 65129417993.

39971492156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39971492159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5374580 + ... + 5382011.

It is an arithmetic number, because the mean of its divisors is an integer number (5835451160).

Almost surely, 2^39971492156 is an apocalyptic number.

It is an amenable number.

39971492156 is a deficient number, since it is larger than the sum of its proper divisors (30053921764).

39971492156 is a wasteful number, since it uses less digits than its factorization.

39971492156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10757524 (or 10757522 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 56.

The spelling of 39971492156 in words is "thirty-nine billion, nine hundred seventy-one million, four hundred ninety-two thousand, one hundred fifty-six".