5431641864488 has 32 divisors (see below), whose sum is σ = 11639617358400. Its totient is φ = 2327769555072.

The previous prime is 5431641864463. The next prime is 5431641864521. The reversal of 5431641864488 is 8844681461345.

It is a super-5 number, since 5×5431641864488⁵ (a number of 65 digits) contains 55555 as substring.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 5431641864488.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122156 + ... + 3298212.

It is an arithmetic number, because the mean of its divisors is an integer number (363738042450).

Almost surely, 2^{5431641864488} is an apocalyptic number.

It is an amenable number.

5431641864488 is an abundant number, since it is smaller than the sum of its proper divisors (6207975493912).

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

5431641864488 is a wasteful number, since it uses less digits than its factorization.

5431641864488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3206609 (or 3206605 counting only the distinct ones).

The product of its digits is 70778880, while the sum is 62.

The spelling of 5431641864488 in words is "five trillion, four hundred thirty-one billion, six hundred forty-one million, eight hundred sixty-four thousand, four hundred eighty-eight".