45900149921 has 16 divisors (see below), whose sum is σ = 48032694336. Its totient is φ = 43826904576.

The previous prime is 45900149909. The next prime is 45900149927. The reversal of 45900149921 is 12994100954.

It is a cyclic number.

It is not a de Polignac number, because 45900149921 - 2²⁶ = 45833041057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45900149927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290006 + ... + 419408.

It is an arithmetic number, because the mean of its divisors is an integer number (3002043396).

Almost surely, 2^45900149921 is an apocalyptic number.

It is an amenable number.

45900149921 is a deficient number, since it is larger than the sum of its proper divisors (2132544415).

45900149921 is a wasteful number, since it uses less digits than its factorization.

45900149921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129632.

The product of its (nonzero) digits is 116640, while the sum is 44.

The spelling of 45900149921 in words is "forty-five billion, nine hundred million, one hundred forty-nine thousand, nine hundred twenty-one".