19626124912 has 40 divisors (see below), whose sum is σ = 41650794000. Its totient is φ = 8917343232.

The previous prime is 19626124907. The next prime is 19626124927. The reversal of 19626124912 is 21942162691.

It is a super-2 number, since 2×19626124912² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1236162 + ... + 1251937.

It is an arithmetic number, because the mean of its divisors is an integer number (1041269850).

Almost surely, 2^19626124912 is an apocalyptic number.

It is an amenable number.

19626124912 is an abundant number, since it is smaller than the sum of its proper divisors (22024669088).

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

19626124912 is a wasteful number, since it uses less digits than its factorization.

19626124912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2488153 (or 2488147 counting only the distinct ones).

The product of its digits is 93312, while the sum is 43.

The spelling of 19626124912 in words is "nineteen billion, six hundred twenty-six million, one hundred twenty-four thousand, nine hundred twelve".