102398158591 has 2 divisors, whose sum is σ = 102398158592. Its totient is φ = 102398158590.

The previous prime is 102398158549. The next prime is 102398158607. The reversal of 102398158591 is 195851893201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102398158591 - 2¹¹ = 102398156543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102398158691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51199079295 + 51199079296.

It is an arithmetic number, because the mean of its divisors is an integer number (51199079296).

Almost surely, 2^102398158591 is an apocalyptic number.

102398158591 is a deficient number, since it is larger than the sum of its proper divisors (1).

102398158591 is an equidigital number, since it uses as much as digits as its factorization.

102398158591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 777600, while the sum is 52.

The spelling of 102398158591 in words is "one hundred two billion, three hundred ninety-eight million, one hundred fifty-eight thousand, five hundred ninety-one".