15227372709 has 16 divisors (see below), whose sum is σ = 23539900800. Its totient is φ = 9710208288.

The previous prime is 15227372669. The next prime is 15227372737. The reversal of 15227372709 is 90727372251.

It is not a de Polignac number, because 15227372709 - 2⁷ = 15227372581 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15227372759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12259744 + ... + 12260985.

It is an arithmetic number, because the mean of its divisors is an integer number (1471243800).

Almost surely, 2^15227372709 is an apocalyptic number.

It is an amenable number.

15227372709 is a deficient number, since it is larger than the sum of its proper divisors (8312528091).

15227372709 is a wasteful number, since it uses less digits than its factorization.

15227372709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24520761 (or 24520755 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

The spelling of 15227372709 in words is "fifteen billion, two hundred twenty-seven million, three hundred seventy-two thousand, seven hundred nine".