15974226338 has 16 divisors (see below), whose sum is σ = 27432360384. Its totient is φ = 6834103920.

The previous prime is 15974226337. The next prime is 15974226349. The reversal of 15974226338 is 83362247951.

It is not an unprimeable number, because it can be changed into a prime (15974226337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 991145 + ... + 1007132.

It is an arithmetic number, because the mean of its divisors is an integer number (1714522524).

Almost surely, 2^15974226338 is an apocalyptic number.

15974226338 is a deficient number, since it is larger than the sum of its proper divisors (11458134046).

15974226338 is a wasteful number, since it uses less digits than its factorization.

15974226338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1998857.

The product of its digits is 2177280, while the sum is 50.

The spelling of 15974226338 in words is "fifteen billion, nine hundred seventy-four million, two hundred twenty-six thousand, three hundred thirty-eight".