45075042009 has 24 divisors (see below), whose sum is σ = 66786744960. Its totient is φ = 29281040928.

The previous prime is 45075041933. The next prime is 45075042049. The reversal of 45075042009 is 90024057054.

It is not a de Polignac number, because 45075042009 - 2²¹ = 45072944857 is a prime.

It is a super-2 number, since 2×45075042009² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45075042049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138694 + ... + 330735.

It is an arithmetic number, because the mean of its divisors is an integer number (2782781040).

Almost surely, 2^45075042009 is an apocalyptic number.

It is an amenable number.

45075042009 is a deficient number, since it is larger than the sum of its proper divisors (21711702951).

45075042009 is a wasteful number, since it uses less digits than its factorization.

45075042009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469709 (or 469706 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 45075042009 in words is "forty-five billion, seventy-five million, forty-two thousand, nine".