19011202872 has 16 divisors (see below), whose sum is σ = 47528007240. Its totient is φ = 6337067616.

The previous prime is 19011202811. The next prime is 19011202877. The reversal of 19011202872 is 27820211091.

It is a super-2 number, since 2×19011202872² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19011202877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396066703 + ... + 396066750.

Almost surely, 2^19011202872 is an apocalyptic number.

19011202872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19011202872 is an abundant number, since it is smaller than the sum of its proper divisors (28516804368).

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

19011202872 is a wasteful number, since it uses less digits than its factorization.

19011202872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792133462 (or 792133458 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 33.

The spelling of 19011202872 in words is "nineteen billion, eleven million, two hundred two thousand, eight hundred seventy-two".