5445639412808 has 64 divisors (see below), whose sum is σ = 11739418905600. Its totient is φ = 2319818264640.

The previous prime is 5445639412777. The next prime is 5445639412813. The reversal of 5445639412808 is 8082149365445.

It is a super-2 number, since 2×5445639412808² (a number of 26 digits) contains 22 as substring.

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, 23652341 + ... + 23881467.

It is an arithmetic number, because the mean of its divisors is an integer number (183428420400).

Almost surely, 2^{5445639412808} is an apocalyptic number.

It is an amenable number.

5445639412808 is an abundant number, since it is smaller than the sum of its proper divisors (6293779492792).

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

5445639412808 is a wasteful number, since it uses less digits than its factorization.

5445639412808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231690 (or 231686 counting only the distinct ones).

The product of its (nonzero) digits is 33177600, while the sum is 59.

The spelling of 5445639412808 in words is "five trillion, four hundred forty-five billion, six hundred thirty-nine million, four hundred twelve thousand, eight hundred eight".