90798942459 has 16 divisors (see below), whose sum is σ = 123982733952. Its totient is φ = 59076208128.

The previous prime is 90798942457. The next prime is 90798942463. The reversal of 90798942459 is 95424989709.

It is not a de Polignac number, because 90798942459 - 2¹ = 90798942457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90798942459.

It is not an unprimeable number, because it can be changed into a prime (90798942457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132189 + ... + 446174.

It is an arithmetic number, because the mean of its divisors is an integer number (7748920872).

Almost surely, 2^90798942459 is an apocalyptic number.

90798942459 is a deficient number, since it is larger than the sum of its proper divisors (33183791493).

90798942459 is a wasteful number, since it uses less digits than its factorization.

90798942459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579626.

The product of its (nonzero) digits is 58786560, while the sum is 66.

The spelling of 90798942459 in words is "ninety billion, seven hundred ninety-eight million, nine hundred forty-two thousand, four hundred fifty-nine".