19207876648 has 16 divisors (see below), whose sum is σ = 36176273280. Its totient is φ = 9560870448.

The previous prime is 19207876627. The next prime is 19207876691. The reversal of 19207876648 is 84667870291.

It is a junction number, because it is equal to n+sod(n) for n = 19207876592 and 19207876601.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5381590 + ... + 5385157.

It is an arithmetic number, because the mean of its divisors is an integer number (2261017080).

Almost surely, 2^19207876648 is an apocalyptic number.

It is an amenable number.

19207876648 is a deficient number, since it is larger than the sum of its proper divisors (16968396632).

19207876648 is a wasteful number, since it uses less digits than its factorization.

19207876648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10766976 (or 10766972 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 58.

The spelling of 19207876648 in words is "nineteen billion, two hundred seven million, eight hundred seventy-six thousand, six hundred forty-eight".