69272172287 has 4 divisors (see below), whose sum is σ = 69292984320. Its totient is φ = 69251360256.

The previous prime is 69272172251. The next prime is 69272172323. The reversal of 69272172287 is 78227127296.

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

It is an interprime number because it is at equal distance from previous prime (69272172251) and next prime (69272172323).

It is a cyclic number.

It is not a de Polignac number, because 69272172287 - 2⁸ = 69272172031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69272172217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10401023 + ... + 10407680.

It is an arithmetic number, because the mean of its divisors is an integer number (17323246080).

Almost surely, 2^69272172287 is an apocalyptic number.

69272172287 is a deficient number, since it is larger than the sum of its proper divisors (20812033).

69272172287 is a wasteful number, since it uses less digits than its factorization.

69272172287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20812032.

The product of its digits is 2370816, while the sum is 53.

The spelling of 69272172287 in words is "sixty-nine billion, two hundred seventy-two million, one hundred seventy-two thousand, two hundred eighty-seven".