19934576772 has 36 divisors (see below), whose sum is σ = 50746688496. Its totient is φ = 6040289280.

The previous prime is 19934576759. The next prime is 19934576819. The reversal of 19934576772 is 27767543991.

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, 1616004 + ... + 1628292.

It is an arithmetic number, because the mean of its divisors is an integer number (1409630236).

Almost surely, 2^19934576772 is an apocalyptic number.

19934576772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19934576772 is an abundant number, since it is smaller than the sum of its proper divisors (30812111724).

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

19934576772 is an equidigital number, since it uses as much as digits as its factorization.

19934576772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24596 (or 12305 counting only the distinct ones).

The product of its digits is 20003760, while the sum is 60.

The spelling of 19934576772 in words is "nineteen billion, nine hundred thirty-four million, five hundred seventy-six thousand, seven hundred seventy-two".