19464192008 has 16 divisors (see below), whose sum is σ = 36545570880. Its totient is φ = 9718706448.

The previous prime is 19464191933. The next prime is 19464192017. The reversal of 19464192008 is 80029146491.

It is a self number, because there is not a number n which added to its sum of digits gives 19464192008.

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, 1667516 + ... + 1679147.

It is an arithmetic number, because the mean of its divisors is an integer number (2284098180).

Almost surely, 2^19464192008 is an apocalyptic number.

It is an amenable number.

19464192008 is a deficient number, since it is larger than the sum of its proper divisors (17081378872).

19464192008 is a wasteful number, since it uses less digits than its factorization.

19464192008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3347396 (or 3347392 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The spelling of 19464192008 in words is "nineteen billion, four hundred sixty-four million, one hundred ninety-two thousand, eight".