45617351021 has 8 divisors (see below), whose sum is σ = 50175660288. Its totient is φ = 41470317900.

The previous prime is 45617351011. The next prime is 45617351027. The reversal of 45617351021 is 12015371654.

It is a happy number.

It is not a de Polignac number, because 45617351021 - 2¹⁸ = 45617088877 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 (45617351027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17135165 + ... + 17137826.

It is an arithmetic number, because the mean of its divisors is an integer number (6271957536).

Almost surely, 2^45617351021 is an apocalyptic number.

It is an amenable number.

45617351021 is a deficient number, since it is larger than the sum of its proper divisors (4558309267).

45617351021 is an equidigital number, since it uses as much as digits as its factorization.

45617351021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34273024 (or 34273002 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 45617351021 in words is "forty-five billion, six hundred seventeen million, three hundred fifty-one thousand, twenty-one".