442889062831 has 2 divisors, whose sum is σ = 442889062832. Its totient is φ = 442889062830.

The previous prime is 442889062813. The next prime is 442889062859. The reversal of 442889062831 is 138260988244.

Together with previous prime (442889062813) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442889062831 is a prime.

It is a super-2 number, since 2×442889062831² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442889066831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221444531415 + 221444531416.

It is an arithmetic number, because the mean of its divisors is an integer number (221444531416).

Almost surely, 2^442889062831 is an apocalyptic number.

442889062831 is a deficient number, since it is larger than the sum of its proper divisors (1).

442889062831 is an equidigital number, since it uses as much as digits as its factorization.

442889062831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5308416, while the sum is 55.

The spelling of 442889062831 in words is "four hundred forty-two billion, eight hundred eighty-nine million, sixty-two thousand, eight hundred thirty-one".