84913678331 has 2 divisors, whose sum is σ = 84913678332. Its totient is φ = 84913678330.

The previous prime is 84913678321. The next prime is 84913678337. The reversal of 84913678331 is 13387631948.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84913678331 is a prime.

It is a super-2 number, since 2×84913678331² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (84913678337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42456839165 + 42456839166.

It is an arithmetic number, because the mean of its divisors is an integer number (42456839166).

Almost surely, 2^84913678331 is an apocalyptic number.

84913678331 is a deficient number, since it is larger than the sum of its proper divisors (1).

84913678331 is an equidigital number, since it uses as much as digits as its factorization.

84913678331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 53.

The spelling of 84913678331 in words is "eighty-four billion, nine hundred thirteen million, six hundred seventy-eight thousand, three hundred thirty-one".