45129799918 has 8 divisors (see below), whose sum is σ = 77365371312. Its totient is φ = 19341342816.

The previous prime is 45129799889. The next prime is 45129799919. The reversal of 45129799918 is 81999792154.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 45129799918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45129799919) 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 3 ways as a sum of consecutive naturals, for example, 1611778555 + ... + 1611778582.

It is an arithmetic number, because the mean of its divisors is an integer number (9670671414).

Almost surely, 2^45129799918 is an apocalyptic number.

45129799918 is a deficient number, since it is larger than the sum of its proper divisors (32235571394).

45129799918 is a wasteful number, since it uses less digits than its factorization.

45129799918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3223557146.

The product of its digits is 14696640, while the sum is 64.

The spelling of 45129799918 in words is "forty-five billion, one hundred twenty-nine million, seven hundred ninety-nine thousand, nine hundred eighteen".