19627986672 has 60 divisors (see below), whose sum is σ = 62778405040. Its totient is φ = 5607995904.

The previous prime is 19627986659. The next prime is 19627986713. The reversal of 19627986672 is 27668972691.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9735097 + ... + 9737112.

Almost surely, 2^19627986672 is an apocalyptic number.

19627986672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19627986672 is an abundant number, since it is smaller than the sum of its proper divisors (43150418368).

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

19627986672 is a wasteful number, since it uses less digits than its factorization.

19627986672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19472230 (or 19472221 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 63.

The spelling of 19627986672 in words is "nineteen billion, six hundred twenty-seven million, nine hundred eighty-six thousand, six hundred seventy-two".