86531341979 has 2 divisors, whose sum is σ = 86531341980. Its totient is φ = 86531341978.

The previous prime is 86531341931. The next prime is 86531341993. The reversal of 86531341979 is 97914313568.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86531341979 is a prime.

It is not a weakly prime, because it can be changed into another prime (86531341909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43265670989 + 43265670990.

It is an arithmetic number, because the mean of its divisors is an integer number (43265670990).

Almost surely, 2^86531341979 is an apocalyptic number.

86531341979 is a deficient number, since it is larger than the sum of its proper divisors (1).

86531341979 is an equidigital number, since it uses as much as digits as its factorization.

86531341979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4898880, while the sum is 56.

The spelling of 86531341979 in words is "eighty-six billion, five hundred thirty-one million, three hundred forty-one thousand, nine hundred seventy-nine".