23254376691 has 16 divisors (see below), whose sum is σ = 38161028864. Its totient is φ = 12266044704.

The previous prime is 23254376681. The next prime is 23254376707. The reversal of 23254376691 is 19667345232.

It is not a de Polignac number, because 23254376691 - 2⁹ = 23254376179 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23254376691.

It is not an unprimeable number, because it can be changed into a prime (23254376681) 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, 42590161 + ... + 42590706.

It is an arithmetic number, because the mean of its divisors is an integer number (2385064304).

Almost surely, 2^23254376691 is an apocalyptic number.

23254376691 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23254376691 is a deficient number, since it is larger than the sum of its proper divisors (14906652173).

23254376691 is a wasteful number, since it uses less digits than its factorization.

23254376691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85180890.

The product of its digits is 1632960, while the sum is 48.

The spelling of 23254376691 in words is "twenty-three billion, two hundred fifty-four million, three hundred seventy-six thousand, six hundred ninety-one".