438378637472125 has 32 divisors (see below), whose sum is σ = 625472041199616. Its totient is φ = 300497276419200.

The previous prime is 438378637472117. The next prime is 438378637472131. The reversal of 438378637472125 is 521274736873834.

It is a happy number.

It is not a de Polignac number, because 438378637472125 - 2³ = 438378637472117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85180237 + ... + 90179986.

It is an arithmetic number, because the mean of its divisors is an integer number (19546001287488).

Almost surely, 2^{438378637472125} is an apocalyptic number.

It is an amenable number.

438378637472125 is a deficient number, since it is larger than the sum of its proper divisors (187093403727491).

438378637472125 is a wasteful number, since it uses less digits than its factorization.

438378637472125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175363102 (or 175363092 counting only the distinct ones).

The product of its digits is 1137991680, while the sum is 70.

The spelling of 438378637472125 in words is "four hundred thirty-eight trillion, three hundred seventy-eight billion, six hundred thirty-seven million, four hundred seventy-two thousand, one hundred twenty-five".