86090725991 has 2 divisors, whose sum is σ = 86090725992. Its totient is φ = 86090725990.

The previous prime is 86090725957. The next prime is 86090726009. The reversal of 86090725991 is 19952709068.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86090725991 is a prime.

It is a super-2 number, since 2×86090725991² (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 (86090725691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43045362995 + 43045362996.

It is an arithmetic number, because the mean of its divisors is an integer number (43045362996).

Almost surely, 2^86090725991 is an apocalyptic number.

86090725991 is a deficient number, since it is larger than the sum of its proper divisors (1).

86090725991 is an equidigital number, since it uses as much as digits as its factorization.

86090725991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2449440, while the sum is 56.

The spelling of 86090725991 in words is "eighty-six billion, ninety million, seven hundred twenty-five thousand, nine hundred ninety-one".