8491272153 has 32 divisors (see below), whose sum is σ = 14170598400. Its totient is φ = 4402990656.

The previous prime is 8491272079. The next prime is 8491272187. The reversal of 8491272153 is 3512721948.

It is not a de Polignac number, because 8491272153 - 2⁸ = 8491271897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8491276153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 247483 + ... + 279696.

It is an arithmetic number, because the mean of its divisors is an integer number (442831200).

Almost surely, 2^8491272153 is an apocalyptic number.

It is an amenable number.

8491272153 is a deficient number, since it is larger than the sum of its proper divisors (5679326247).

8491272153 is a wasteful number, since it uses less digits than its factorization.

8491272153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527261.

The product of its digits is 120960, while the sum is 42.

The square root of 8491272153 is about 92148.0990200015. The cubic root of 8491272153 is about 2040.1288007392.

The spelling of 8491272153 in words is "eight billion, four hundred ninety-one million, two hundred seventy-two thousand, one hundred fifty-three".