39153942972 has 120 divisors (see below), whose sum is σ = 108684465120. Its totient is φ = 12248755200.

The previous prime is 39153942967. The next prime is 39153943019. The reversal of 39153942972 is 27924935193.

39153942972 is a `hidden beast` number, since 39 + 1 + 539 + 4 + 2 + 9 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1967472 + ... + 1987272.

It is an arithmetic number, because the mean of its divisors is an integer number (905703876).

Almost surely, 2^39153942972 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39153942972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54342232560).

39153942972 is an abundant number, since it is smaller than the sum of its proper divisors (69530522148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39153942972 is a wasteful number, since it uses less digits than its factorization.

39153942972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20193 (or 20182 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 54.

The spelling of 39153942972 in words is "thirty-nine billion, one hundred fifty-three million, nine hundred forty-two thousand, nine hundred seventy-two".