45418920918 has 64 divisors (see below), whose sum is σ = 109407767040. Its totient is φ = 12279313152.

The previous prime is 45418920917. The next prime is 45418920929. The reversal of 45418920918 is 81902981454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45418920913) 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, 650680 + ... + 717092.

It is an arithmetic number, because the mean of its divisors is an integer number (1709496360).

Almost surely, 2^45418920918 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45418920918, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54703883520).

45418920918 is an abundant number, since it is smaller than the sum of its proper divisors (63988846122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45418920918 is a wasteful number, since it uses less digits than its factorization.

45418920918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67301.

The product of its (nonzero) digits is 829440, while the sum is 51.

The spelling of 45418920918 in words is "forty-five billion, four hundred eighteen million, nine hundred twenty thousand, nine hundred eighteen".