19257664996 has 12 divisors (see below), whose sum is σ = 33702020352. Its totient is φ = 9628516328.

The previous prime is 19257664949. The next prime is 19257665123. The reversal of 19257664996 is 69946675291.

It is a happy number.

It is a super-2 number, since 2×19257664996² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106281 + ... + 223183.

It is an arithmetic number, because the mean of its divisors is an integer number (2808501696).

Almost surely, 2^19257664996 is an apocalyptic number.

It is an amenable number.

19257664996 is a deficient number, since it is larger than the sum of its proper divisors (14444355356).

19257664996 is a wasteful number, since it uses less digits than its factorization.

19257664996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158090 (or 158088 counting only the distinct ones).

The product of its digits is 44089920, while the sum is 64.

The spelling of 19257664996 in words is "nineteen billion, two hundred fifty-seven million, six hundred sixty-four thousand, nine hundred ninety-six".