86395626257 has 2 divisors, whose sum is σ = 86395626258. Its totient is φ = 86395626256.

The previous prime is 86395626143. The next prime is 86395626263. The reversal of 86395626257 is 75262659368.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63859311616 + 22536314641 = 252704^2 + 150121^2 .

It is a cyclic number.

It is not a de Polignac number, because 86395626257 - 2¹⁴ = 86395609873 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86395626196 and 86395626205.

It is not a weakly prime, because it can be changed into another prime (86395626287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43197813128 + 43197813129.

It is an arithmetic number, because the mean of its divisors is an integer number (43197813129).

Almost surely, 2^86395626257 is an apocalyptic number.

It is an amenable number.

86395626257 is a deficient number, since it is larger than the sum of its proper divisors (1).

86395626257 is an equidigital number, since it uses as much as digits as its factorization.

86395626257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32659200, while the sum is 59.

The spelling of 86395626257 in words is "eighty-six billion, three hundred ninety-five million, six hundred twenty-six thousand, two hundred fifty-seven".