15191144494272 has 84 divisors (see below), whose sum is σ = 45044144374320. Its totient is φ = 4889103969792.

The previous prime is 15191144494259. The next prime is 15191144494321. The reversal of 15191144494272 is 27249444119151.

15191144494272 is a `hidden beast` number, since 1 + 5 + 1 + 9 + 1 + 144 + 494 + 2 + 7 + 2 = 666.

15191144494272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

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, 454699068 + ... + 454732475.

It is an arithmetic number, because the mean of its divisors is an integer number (536239813980).

Almost surely, 2^{15191144494272} is an apocalyptic number.

15191144494272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15191144494272 is an abundant number, since it is smaller than the sum of its proper divisors (29852999880048).

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

15191144494272 is a wasteful number, since it uses less digits than its factorization.

15191144494272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909431590 (or 909431577 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The spelling of 15191144494272 in words is "fifteen trillion, one hundred ninety-one billion, one hundred forty-four million, four hundred ninety-four thousand, two hundred seventy-two".