84793945631 has 2 divisors, whose sum is σ = 84793945632. Its totient is φ = 84793945630.

The previous prime is 84793945619. The next prime is 84793945637. The reversal of 84793945631 is 13654939748.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84793945631 - 2²⁶ = 84726836767 is a prime.

It is a super-2 number, since 2×84793945631² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84793945637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42396972815 + 42396972816.

It is an arithmetic number, because the mean of its divisors is an integer number (42396972816).

Almost surely, 2^84793945631 is an apocalyptic number.

84793945631 is a deficient number, since it is larger than the sum of its proper divisors (1).

84793945631 is an equidigital number, since it uses as much as digits as its factorization.

84793945631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19595520, while the sum is 59.

The spelling of 84793945631 in words is "eighty-four billion, seven hundred ninety-three million, nine hundred forty-five thousand, six hundred thirty-one".