45623026521 has 10 divisors (see below), whose sum is σ = 68152916282. Its totient is φ = 30415350960.

The previous prime is 45623026507. The next prime is 45623026543. The reversal of 45623026521 is 12562032654.

45623026521 is a `hidden beast` number, since 4 + 5 + 623 + 0 + 2 + 6 + 5 + 21 = 666.

45623026521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 34026967296 + 11596059225 = 184464^2 + 107685^2 .

It is not a de Polignac number, because 45623026521 - 2⁵ = 45623026489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45623026621) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 281623540 + ... + 281623701.

Almost surely, 2^45623026521 is an apocalyptic number.

It is an amenable number.

45623026521 is a deficient number, since it is larger than the sum of its proper divisors (22529889761).

45623026521 is an equidigital number, since it uses as much as digits as its factorization.

45623026521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563247253 (or 563247244 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 45623026521 in words is "forty-five billion, six hundred twenty-three million, twenty-six thousand, five hundred twenty-one".