19268136824 has 16 divisors (see below), whose sum is σ = 36298981320. Its totient is φ = 9588408480.

The previous prime is 19268136809. The next prime is 19268136827. The reversal of 19268136824 is 42863186291.

It is a super-2 number, since 2×19268136824² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19268136827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5705699 + ... + 5709074.

Almost surely, 2^19268136824 is an apocalyptic number.

It is an amenable number.

19268136824 is a deficient number, since it is larger than the sum of its proper divisors (17030844496).

19268136824 is a wasteful number, since it uses less digits than its factorization.

19268136824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11414990 (or 11414986 counting only the distinct ones).

The product of its digits is 995328, while the sum is 50.

The spelling of 19268136824 in words is "nineteen billion, two hundred sixty-eight million, one hundred thirty-six thousand, eight hundred twenty-four".