438464367078332 has 24 divisors (see below), whose sum is σ = 889279843092480. Its totient is φ = 185266633975920.

The previous prime is 438464367078323. The next prime is 438464367078349. The reversal of 438464367078332 is 233870763464834.

It is a happy number.

It is a Smith number, since the sum of its digits (68) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 110277756332 + ... + 110277760307.

It is an arithmetic number, because the mean of its divisors is an integer number (37053326795520).

Almost surely, 2^{438464367078332} is an apocalyptic number.

It is an amenable number.

438464367078332 is an abundant number, since it is smaller than the sum of its proper divisors (450815476014148).

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

438464367078332 is a wasteful number, since it uses less digits than its factorization.

438464367078332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220555516721 (or 220555516719 counting only the distinct ones).

The product of its (nonzero) digits is 1170505728, while the sum is 68.

The spelling of 438464367078332 in words is "four hundred thirty-eight trillion, four hundred sixty-four billion, three hundred sixty-seven million, seventy-eight thousand, three hundred thirty-two".