90194254963 has 4 divisors (see below), whose sum is σ = 90195968320. Its totient is φ = 90192541608.

The previous prime is 90194254921. The next prime is 90194254973. The reversal of 90194254963 is 36945249109.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90194254963 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90194254963.

It is not an unprimeable number, because it can be changed into a prime (90194254973) 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, 775128 + ... + 883861.

It is an arithmetic number, because the mean of its divisors is an integer number (22548992080).

Almost surely, 2^90194254963 is an apocalyptic number.

90194254963 is a deficient number, since it is larger than the sum of its proper divisors (1713357).

90194254963 is a wasteful number, since it uses less digits than its factorization.

90194254963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713356.

The product of its (nonzero) digits is 2099520, while the sum is 52.

The spelling of 90194254963 in words is "ninety billion, one hundred ninety-four million, two hundred fifty-four thousand, nine hundred sixty-three".