45000040051 has 32 divisors (see below), whose sum is σ = 47887873920. Its totient is φ = 42223104000.

The previous prime is 45000040013. The next prime is 45000040081. The reversal of 45000040051 is 15004000054.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45000040051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45000040081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73409221 + ... + 73409833.

It is an arithmetic number, because the mean of its divisors is an integer number (1496496060).

Almost surely, 2^45000040051 is an apocalyptic number.

45000040051 is a deficient number, since it is larger than the sum of its proper divisors (2887833869).

45000040051 is a wasteful number, since it uses less digits than its factorization.

45000040051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167.

The product of its (nonzero) digits is 400, while the sum is 19.

The spelling of 45000040051 in words is "forty-five billion, forty thousand, fifty-one".