86115260977 has 2 divisors, whose sum is σ = 86115260978. Its totient is φ = 86115260976.

The previous prime is 86115260969. The next prime is 86115260981. The reversal of 86115260977 is 77906251168.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44154196641 + 41961064336 = 210129^2 + 204844^2 .

It is a cyclic number.

It is not a de Polignac number, because 86115260977 - 2³ = 86115260969 is a prime.

It is not a weakly prime, because it can be changed into another prime (86115260947) 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, 43057630488 + 43057630489.

It is an arithmetic number, because the mean of its divisors is an integer number (43057630489).

Almost surely, 2^86115260977 is an apocalyptic number.

It is an amenable number.

86115260977 is a deficient number, since it is larger than the sum of its proper divisors (1).

86115260977 is an equidigital number, since it uses as much as digits as its factorization.

86115260977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1270080, while the sum is 52.

The spelling of 86115260977 in words is "eighty-six billion, one hundred fifteen million, two hundred sixty thousand, nine hundred seventy-seven".