438650857338876 has 240 divisors, whose sum is σ = 1417510789858240. Its totient is φ = 115182948049920.

The previous prime is 438650857338829. The next prime is 438650857338877. The reversal of 438650857338876 is 678833758056834.

438650857338876 is a `hidden beast` number, since 4 + 3 + 8 + 6 + 5 + 0 + 8 + 573 + 38 + 8 + 7 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a junction number, because it is equal to n+sod(n) for n = 438650857338795 and 438650857338804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438650857338877) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 25731985 + ... + 39235656.

Almost surely, 2^{438650857338876} is an apocalyptic number.

It is an amenable number.

438650857338876 is an abundant number, since it is smaller than the sum of its proper divisors (978859932519364).

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

438650857338876 is a wasteful number, since it uses less digits than its factorization.

438650857338876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64967906 (or 64967895 counting only the distinct ones).

The product of its (nonzero) digits is 19508428800, while the sum is 81.

The spelling of 438650857338876 in words is "four hundred thirty-eight trillion, six hundred fifty billion, eight hundred fifty-seven million, three hundred thirty-eight thousand, eight hundred seventy-six".