23176408645 has 32 divisors (see below), whose sum is σ = 31117413600. Its totient is φ = 16453484544.

The previous prime is 23176408627. The next prime is 23176408663. The reversal of 23176408645 is 54680467132.

It is a Cunningham number, because it is equal to 152238²+1.

It is an interprime number because it is at equal distance from previous prime (23176408627) and next prime (23176408663).

It can be written as a sum of positive squares in 16 ways, for example, as 14833047681 + 8343360964 = 121791^2 + 91342^2 .

It is not a de Polignac number, because 23176408645 - 2⁷ = 23176408517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23176408595 and 23176408604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 412821 + ... + 465589.

It is an arithmetic number, because the mean of its divisors is an integer number (972419175).

Almost surely, 2^23176408645 is an apocalyptic number.

It is an amenable number.

23176408645 is a deficient number, since it is larger than the sum of its proper divisors (7941004955).

23176408645 is a wasteful number, since it uses less digits than its factorization.

23176408645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53049.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 23176408645 in words is "twenty-three billion, one hundred seventy-six million, four hundred eight thousand, six hundred forty-five".