45615204521 has 4 divisors (see below), whose sum is σ = 45943371600. Its totient is φ = 45287037444.

The previous prime is 45615204517. The next prime is 45615204529. The reversal of 45615204521 is 12540251654.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45615204521 - 2² = 45615204517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45615204529) 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 3 ways as a sum of consecutive naturals, for example, 164083331 + ... + 164083608.

It is an arithmetic number, because the mean of its divisors is an integer number (11485842900).

Almost surely, 2^45615204521 is an apocalyptic number.

It is an amenable number.

45615204521 is a deficient number, since it is larger than the sum of its proper divisors (328167079).

45615204521 is a wasteful number, since it uses less digits than its factorization.

45615204521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328167078.

The product of its (nonzero) digits is 48000, while the sum is 35.

The spelling of 45615204521 in words is "forty-five billion, six hundred fifteen million, two hundred four thousand, five hundred twenty-one".