19402011272 has 64 divisors (see below), whose sum is σ = 44032819200. Its totient is φ = 7829110080.

The previous prime is 19402011269. The next prime is 19402011283. The reversal of 19402011272 is 27211020491.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117497 + ... + 229367.

It is an arithmetic number, because the mean of its divisors is an integer number (688012800).

Almost surely, 2^19402011272 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 19402011272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22016409600).

19402011272 is an abundant number, since it is smaller than the sum of its proper divisors (24630807928).

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

19402011272 is a wasteful number, since it uses less digits than its factorization.

19402011272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112066 (or 112062 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The spelling of 19402011272 in words is "nineteen billion, four hundred two million, eleven thousand, two hundred seventy-two".