5431907187440 has 20 divisors (see below), whose sum is σ = 12629184210984. Its totient is φ = 2172762874944.

The previous prime is 5431907187433. The next prime is 5431907187467. The reversal of 5431907187440 is 447817091345.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-3 number, since 3×5431907187440³ (a number of 39 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33949419842 + ... + 33949420001.

Almost surely, 2^{5431907187440} is an apocalyptic number.

It is an amenable number.

5431907187440 is an abundant number, since it is smaller than the sum of its proper divisors (7197277023544).

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

5431907187440 is a wasteful number, since it uses less digits than its factorization.

5431907187440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67898839856 (or 67898839850 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 53.

The spelling of 5431907187440 in words is "five trillion, four hundred thirty-one billion, nine hundred seven million, one hundred eighty-seven thousand, four hundred forty".