438875515667 has 2 divisors, whose sum is σ = 438875515668. Its totient is φ = 438875515666.

The previous prime is 438875515649. The next prime is 438875515691. The reversal of 438875515667 is 766515578834.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 438875515667 - 2³² = 434580548371 is a prime.

It is a super-2 number, since 2×438875515667² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (438875515627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219437757833 + 219437757834.

It is an arithmetic number, because the mean of its divisors is an integer number (219437757834).

Almost surely, 2^438875515667 is an apocalyptic number.

438875515667 is a deficient number, since it is larger than the sum of its proper divisors (1).

438875515667 is an equidigital number, since it uses as much as digits as its factorization.

438875515667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344000, while the sum is 65.

The spelling of 438875515667 in words is "four hundred thirty-eight billion, eight hundred seventy-five million, five hundred fifteen thousand, six hundred sixty-seven".