5444636418 has 48 divisors (see below), whose sum is σ = 12768100800. Its totient is φ = 1666840032.

The previous prime is 5444636413. The next prime is 5444636467. The reversal of 5444636418 is 8146364445.

5444636418 is a `hidden beast` number, since 5 + 4 + 4 + 4 + 636 + 4 + 1 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (5444636413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11896 + ... + 105027.

It is an arithmetic number, because the mean of its divisors is an integer number (266002100).

Almost surely, 2^5444636418 is an apocalyptic number.

5444636418 is an abundant number, since it is smaller than the sum of its proper divisors (7323464382).

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

5444636418 is a wasteful number, since it uses less digits than its factorization.

5444636418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117143 (or 117140 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 45.

The square root of 5444636418 is about 73787.7795979795. The cubic root of 5444636418 is about 1759.2313725780.

The spelling of 5444636418 in words is "five billion, four hundred forty-four million, six hundred thirty-six thousand, four hundred eighteen".