15272747291 has 4 divisors (see below), whose sum is σ = 15430198392. Its totient is φ = 15115296192.

The previous prime is 15272747263. The next prime is 15272747387. The reversal of 15272747291 is 19274727251.

15272747291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15272747291 - 2³⁰ = 14199005467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15272747221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78725405 + ... + 78725598.

It is an arithmetic number, because the mean of its divisors is an integer number (3857549598).

Almost surely, 2^15272747291 is an apocalyptic number.

15272747291 is a deficient number, since it is larger than the sum of its proper divisors (157451101).

15272747291 is an equidigital number, since it uses as much as digits as its factorization.

15272747291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157451100.

The product of its digits is 493920, while the sum is 47.

The spelling of 15272747291 in words is "fifteen billion, two hundred seventy-two million, seven hundred forty-seven thousand, two hundred ninety-one".