15397001952 has 24 divisors (see below), whose sum is σ = 40417130376. Its totient is φ = 5132333952.

The previous prime is 15397001951. The next prime is 15397002011. The reversal of 15397001952 is 25910079351.

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (42) 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 (15397001951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80192623 + ... + 80192814.

It is an arithmetic number, because the mean of its divisors is an integer number (1684047099).

Almost surely, 2^15397001952 is an apocalyptic number.

15397001952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15397001952 is an abundant number, since it is smaller than the sum of its proper divisors (25020128424).

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

15397001952 is a wasteful number, since it uses less digits than its factorization.

15397001952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160385450 (or 160385442 counting only the distinct ones).

The product of its (nonzero) digits is 85050, while the sum is 42.

The spelling of 15397001952 in words is "fifteen billion, three hundred ninety-seven million, one thousand, nine hundred fifty-two".