19527272912 has 80 divisors (see below), whose sum is σ = 43647956352. Its totient is φ = 8289914880.

The previous prime is 19527272903. The next prime is 19527272953. The reversal of 19527272912 is 21927272591.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12573128 + ... + 12574680.

Almost surely, 2^19527272912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19527272912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21823978176).

19527272912 is an abundant number, since it is smaller than the sum of its proper divisors (24120683440).

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

19527272912 is a wasteful number, since it uses less digits than its factorization.

19527272912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2556 (or 2550 counting only the distinct ones).

The product of its digits is 317520, while the sum is 47.

The spelling of 19527272912 in words is "nineteen billion, five hundred twenty-seven million, two hundred seventy-two thousand, nine hundred twelve".