90109414474 has 4 divisors (see below), whose sum is σ = 135164121714. Its totient is φ = 45054707236.

The previous prime is 90109414463. The next prime is 90109414529. The reversal of 90109414474 is 47441490109.

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

It can be written as a sum of positive squares in only one way, i.e., 89236625625 + 872788849 = 298725^2 + 29543^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 90109414474.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22527353617 + ... + 22527353620.

Almost surely, 2^90109414474 is an apocalyptic number.

90109414474 is a deficient number, since it is larger than the sum of its proper divisors (45054707240).

90109414474 is a wasteful number, since it uses less digits than its factorization.

90109414474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45054707239.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 90109414474 in words is "ninety billion, one hundred nine million, four hundred fourteen thousand, four hundred seventy-four".