45156438187 has 12 divisors (see below), whose sum is σ = 52609397616. Its totient is φ = 38646217680.

The previous prime is 45156438143. The next prime is 45156438191. The reversal of 45156438187 is 78183465154.

It is a de Polignac number, because none of the positive numbers 2^k-45156438187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45156438127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 673639 + ... + 737632.

It is an arithmetic number, because the mean of its divisors is an integer number (4384116468).

Almost surely, 2^45156438187 is an apocalyptic number.

45156438187 is a deficient number, since it is larger than the sum of its proper divisors (7452959429).

45156438187 is a wasteful number, since it uses less digits than its factorization.

45156438187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411938 (or 1411931 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 52.

The spelling of 45156438187 in words is "forty-five billion, one hundred fifty-six million, four hundred thirty-eight thousand, one hundred eighty-seven".