90243100202 has 16 divisors (see below), whose sum is σ = 137258686080. Its totient is φ = 44492968608.

The previous prime is 90243100193. The next prime is 90243100253. The reversal of 90243100202 is 20200134209.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 625388 + ... + 756039.

It is an arithmetic number, because the mean of its divisors is an integer number (8578667880).

Almost surely, 2^90243100202 is an apocalyptic number.

90243100202 is a deficient number, since it is larger than the sum of its proper divisors (47015585878).

90243100202 is a wasteful number, since it uses less digits than its factorization.

90243100202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381885.

The product of its (nonzero) digits is 864, while the sum is 23.

The spelling of 90243100202 in words is "ninety billion, two hundred forty-three million, one hundred thousand, two hundred two".