23226625645 has 4 divisors (see below), whose sum is σ = 27871950780. Its totient is φ = 18581300512.

The previous prime is 23226625637. The next prime is 23226625651. The reversal of 23226625645 is 54652662232.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3500142244 + 19726483401 = 59162^2 + 140451^2 .

It is a cyclic number.

It is not a de Polignac number, because 23226625645 - 2³ = 23226625637 is a prime.

It is a super-3 number, since 3×23226625645³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2322662560 + ... + 2322662569.

It is an arithmetic number, because the mean of its divisors is an integer number (6967987695).

Almost surely, 2^23226625645 is an apocalyptic number.

It is an amenable number.

23226625645 is a deficient number, since it is larger than the sum of its proper divisors (4645325135).

23226625645 is an equidigital number, since it uses as much as digits as its factorization.

23226625645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4645325134.

The product of its digits is 1036800, while the sum is 43.

The spelling of 23226625645 in words is "twenty-three billion, two hundred twenty-six million, six hundred twenty-five thousand, six hundred forty-five".