438379050931 has 2 divisors, whose sum is σ = 438379050932. Its totient is φ = 438379050930.

The previous prime is 438379050911. The next prime is 438379051021. The reversal of 438379050931 is 139050973834.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 438379050931 - 2⁵ = 438379050899 is a prime.

It is a super-2 number, since 2×438379050931² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (438379050911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219189525465 + 219189525466.

It is an arithmetic number, because the mean of its divisors is an integer number (219189525466).

Almost surely, 2^438379050931 is an apocalyptic number.

438379050931 is a deficient number, since it is larger than the sum of its proper divisors (1).

438379050931 is an equidigital number, since it uses as much as digits as its factorization.

438379050931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2449440, while the sum is 52.

The spelling of 438379050931 in words is "four hundred thirty-eight billion, three hundred seventy-nine million, fifty thousand, nine hundred thirty-one".