19253680944 has 40 divisors (see below), whose sum is σ = 49743773040. Its totient is φ = 6417235968.

The previous prime is 19253680933. The next prime is 19253680961. The reversal of 19253680944 is 44908635291.

It is a super-2 number, since 2×19253680944² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 752392 + ... + 777560.

It is an arithmetic number, because the mean of its divisors is an integer number (1243594326).

Almost surely, 2^19253680944 is an apocalyptic number.

It is an amenable number.

19253680944 is an abundant number, since it is smaller than the sum of its proper divisors (30490092096).

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

19253680944 is a wasteful number, since it uses less digits than its factorization.

19253680944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41117 (or 41111 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 51.

The spelling of 19253680944 in words is "nineteen billion, two hundred fifty-three million, six hundred eighty thousand, nine hundred forty-four".