5431386889344 has 512 divisors, whose sum is σ = 17064844473600. Its totient is φ = 1515191795712.

The previous prime is 5431386889303. The next prime is 5431386889373. The reversal of 5431386889344 is 4439886831345.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 266377902 + ... + 266398290.

Almost surely, 2^{5431386889344} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5431386889344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8532422236800).

5431386889344 is an abundant number, since it is smaller than the sum of its proper divisors (11633457584256).

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

5431386889344 is a wasteful number, since it uses less digits than its factorization.

5431386889344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20552 (or 20540 counting only the distinct ones).

The product of its digits is 238878720, while the sum is 66.

The spelling of 5431386889344 in words is "five trillion, four hundred thirty-one billion, three hundred eighty-six million, eight hundred eighty-nine thousand, three hundred forty-four".