90690598759 has 2 divisors, whose sum is σ = 90690598760. Its totient is φ = 90690598758.

The previous prime is 90690598727. The next prime is 90690598793. The reversal of 90690598759 is 95789509609.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90690598759 - 2⁵ = 90690598727 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90690598694 and 90690598703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90690598709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45345299379 + 45345299380.

It is an arithmetic number, because the mean of its divisors is an integer number (45345299380).

Almost surely, 2^90690598759 is an apocalyptic number.

90690598759 is a deficient number, since it is larger than the sum of its proper divisors (1).

90690598759 is an equidigital number, since it uses as much as digits as its factorization.

90690598759 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55112400, while the sum is 67.

The spelling of 90690598759 in words is "ninety billion, six hundred ninety million, five hundred ninety-eight thousand, seven hundred fifty-nine".