45218008840 has 64 divisors (see below), whose sum is σ = 103133036160. Its totient is φ = 17841308160.

The previous prime is 45218008769. The next prime is 45218008889. The reversal of 45218008840 is 4880081254.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 45218008793 and 45218008802.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 849244 + ... + 900916.

It is an arithmetic number, because the mean of its divisors is an integer number (1611453690).

Almost surely, 2^45218008840 is an apocalyptic number.

45218008840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45218008840 is an abundant number, since it is smaller than the sum of its proper divisors (57915027320).

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

45218008840 is a wasteful number, since it uses less digits than its factorization.

45218008840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51982 (or 51978 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 40.

The spelling of 45218008840 in words is "forty-five billion, two hundred eighteen million, eight thousand, eight hundred forty".