86119431913 has 2 divisors, whose sum is σ = 86119431914. Its totient is φ = 86119431912.

The previous prime is 86119431887. The next prime is 86119431917. The reversal of 86119431913 is 31913491168.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72904320064 + 13215111849 = 270008^2 + 114957^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86119431913 is a prime.

It is not a weakly prime, because it can be changed into another prime (86119431917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43059715956 + 43059715957.

It is an arithmetic number, because the mean of its divisors is an integer number (43059715957).

Almost surely, 2^86119431913 is an apocalyptic number.

It is an amenable number.

86119431913 is a deficient number, since it is larger than the sum of its proper divisors (1).

86119431913 is an equidigital number, since it uses as much as digits as its factorization.

86119431913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 46.

The spelling of 86119431913 in words is "eighty-six billion, one hundred nineteen million, four hundred thirty-one thousand, nine hundred thirteen".