90291468959 has 4 divisors (see below), whose sum is σ = 90355552320. Its totient is φ = 90227385600.

The previous prime is 90291468931. The next prime is 90291468983. The reversal of 90291468959 is 95986419209.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90291468959 - 2³² = 85996501663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90291468559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32039567 + ... + 32042384.

It is an arithmetic number, because the mean of its divisors is an integer number (22588888080).

Almost surely, 2^90291468959 is an apocalyptic number.

90291468959 is a deficient number, since it is larger than the sum of its proper divisors (64083361).

90291468959 is a wasteful number, since it uses less digits than its factorization.

90291468959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64083360.

The product of its (nonzero) digits is 12597120, while the sum is 62.

The spelling of 90291468959 in words is "ninety billion, two hundred ninety-one million, four hundred sixty-eight thousand, nine hundred fifty-nine".