45151172979 has 16 divisors (see below), whose sum is σ = 65694499200. Its totient is φ = 27355986560.

The previous prime is 45151172977. The next prime is 45151173019. The reversal of 45151172979 is 97927115154.

It is a cyclic number.

It is not a de Polignac number, because 45151172979 - 2¹ = 45151172977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45151172977) 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 15 ways as a sum of consecutive naturals, for example, 98502 + ... + 316235.

It is an arithmetic number, because the mean of its divisors is an integer number (4105906200).

Almost surely, 2^45151172979 is an apocalyptic number.

45151172979 is a deficient number, since it is larger than the sum of its proper divisors (20543326221).

45151172979 is a wasteful number, since it uses less digits than its factorization.

45151172979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418050.

The product of its digits is 793800, while the sum is 51.

It can be divided in two parts, 45151 and 172979, that added together give a triangular number (218130 = T₆₆₀).

The spelling of 45151172979 in words is "forty-five billion, one hundred fifty-one million, one hundred seventy-two thousand, nine hundred seventy-nine".