86650597399 has 2 divisors, whose sum is σ = 86650597400. Its totient is φ = 86650597398.

The previous prime is 86650597393. The next prime is 86650597441. The reversal of 86650597399 is 99379505668.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86650597399 - 2²⁷ = 86516379671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86650597393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43325298699 + 43325298700.

It is an arithmetic number, because the mean of its divisors is an integer number (43325298700).

Almost surely, 2^86650597399 is an apocalyptic number.

86650597399 is a deficient number, since it is larger than the sum of its proper divisors (1).

86650597399 is an equidigital number, since it uses as much as digits as its factorization.

86650597399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110224800, while the sum is 67.

The spelling of 86650597399 in words is "eighty-six billion, six hundred fifty million, five hundred ninety-seven thousand, three hundred ninety-nine".