42331078957 has 2 divisors, whose sum is σ = 42331078958. Its totient is φ = 42331078956.

The previous prime is 42331078919. The next prime is 42331078961. The reversal of 42331078957 is 75987013324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40379294916 + 1951784041 = 200946^2 + 44179^2 .

It is a cyclic number.

It is not a de Polignac number, because 42331078957 - 2²³ = 42322690349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42331078957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42335078957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21165539478 + 21165539479.

It is an arithmetic number, because the mean of its divisors is an integer number (21165539479).

Almost surely, 2^42331078957 is an apocalyptic number.

It is an amenable number.

42331078957 is a deficient number, since it is larger than the sum of its proper divisors (1).

42331078957 is an equidigital number, since it uses as much as digits as its factorization.

42331078957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 42331078957 in words is "forty-two billion, three hundred thirty-one million, seventy-eight thousand, nine hundred fifty-seven".