19257225916 has 48 divisors (see below), whose sum is σ = 36335996928. Its totient is φ = 8903980800.

The previous prime is 19257225907. The next prime is 19257225931. The reversal of 19257225916 is 61952275291.

It is a self number, because there is not a number n which added to its sum of digits gives 19257225916.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3485236 + ... + 3490756.

It is an arithmetic number, because the mean of its divisors is an integer number (756999936).

Almost surely, 2^19257225916 is an apocalyptic number.

It is an amenable number.

19257225916 is a deficient number, since it is larger than the sum of its proper divisors (17078771012).

19257225916 is a wasteful number, since it uses less digits than its factorization.

19257225916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6802 (or 6800 counting only the distinct ones).

The product of its digits is 680400, while the sum is 49.

The spelling of 19257225916 in words is "nineteen billion, two hundred fifty-seven million, two hundred twenty-five thousand, nine hundred sixteen".