31875959879 has 2 divisors, whose sum is σ = 31875959880. Its totient is φ = 31875959878.

The previous prime is 31875959749. The next prime is 31875959903. The reversal of 31875959879 is 97895957813.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31875959879 - 2²⁰ = 31874911303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31875955879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15937979939 + 15937979940.

It is an arithmetic number, because the mean of its divisors is an integer number (15937979940).

Almost surely, 2^31875959879 is an apocalyptic number.

31875959879 is a deficient number, since it is larger than the sum of its proper divisors (1).

31875959879 is an equidigital number, since it uses as much as digits as its factorization.

31875959879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 171460800, while the sum is 71.

The spelling of 31875959879 in words is "thirty-one billion, eight hundred seventy-five million, nine hundred fifty-nine thousand, eight hundred seventy-nine".