19626125012 has 24 divisors (see below), whose sum is σ = 38934420000. Its totient is φ = 8581463136.

The previous prime is 19626124981. The next prime is 19626125021. The reversal of 19626125012 is 21052162691.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9931262 + ... + 9933237.

It is an arithmetic number, because the mean of its divisors is an integer number (1622267500).

Almost surely, 2^19626125012 is an apocalyptic number.

It is an amenable number.

19626125012 is a deficient number, since it is larger than the sum of its proper divisors (19308294988).

19626125012 is a wasteful number, since it uses less digits than its factorization.

19626125012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19864535 (or 19864533 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The spelling of 19626125012 in words is "nineteen billion, six hundred twenty-six million, one hundred twenty-five thousand, twelve".