84059984831 has 2 divisors, whose sum is σ = 84059984832. Its totient is φ = 84059984830.

The previous prime is 84059984759. The next prime is 84059984837. The reversal of 84059984831 is 13848995048.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84059984831 - 2³⁰ = 82986243007 is a prime.

It is a super-2 number, since 2×84059984831² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84059984837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42029992415 + 42029992416.

It is an arithmetic number, because the mean of its divisors is an integer number (42029992416).

Almost surely, 2^84059984831 is an apocalyptic number.

84059984831 is a deficient number, since it is larger than the sum of its proper divisors (1).

84059984831 is an equidigital number, since it uses as much as digits as its factorization.

84059984831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9953280, while the sum is 59.

The spelling of 84059984831 in words is "eighty-four billion, fifty-nine million, nine hundred eighty-four thousand, eight hundred thirty-one".