15974342564 has 6 divisors (see below), whose sum is σ = 27955099494. Its totient is φ = 7987171280.

The previous prime is 15974342557. The next prime is 15974342581. The reversal of 15974342564 is 46524347951.

15974342564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 14706412900 + 1267929664 = 121270^2 + 35608^2 .

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 as a sum of consecutive naturals, namely, 1996792817 + ... + 1996792824.

It is an arithmetic number, because the mean of its divisors is an integer number (4659183249).

Almost surely, 2^15974342564 is an apocalyptic number.

It is an amenable number.

15974342564 is a deficient number, since it is larger than the sum of its proper divisors (11980756930).

15974342564 is a wasteful number, since it uses less digits than its factorization.

15974342564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3993585645 (or 3993585643 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 50.

The spelling of 15974342564 in words is "fifteen billion, nine hundred seventy-four million, three hundred forty-two thousand, five hundred sixty-four".