8257659159091 has 2 divisors, whose sum is σ = 8257659159092. Its totient is φ = 8257659159090.

The previous prime is 8257659159077. The next prime is 8257659159097. The reversal of 8257659159091 is 1909519567528.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8257659159091 - 2¹⁵ = 8257659126323 is a prime.

It is not a weakly prime, because it can be changed into another prime (8257659159097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4128829579545 + 4128829579546.

It is an arithmetic number, because the mean of its divisors is an integer number (4128829579546).

Almost surely, 2^{8257659159091} is an apocalyptic number.

8257659159091 is a deficient number, since it is larger than the sum of its proper divisors (1).

8257659159091 is an equidigital number, since it uses as much as digits as its factorization.

8257659159091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236000, while the sum is 67.

The spelling of 8257659159091 in words is "eight trillion, two hundred fifty-seven billion, six hundred fifty-nine million, one hundred fifty-nine thousand, ninety-one".