17941090902 has 16 divisors (see below), whose sum is σ = 41008207872. Its totient is φ = 5126025960.

The previous prime is 17941090861. The next prime is 17941090931. The reversal of 17941090902 is 20909014971.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 427168831 = 17941090902 / (1 + 7 + 9 + 4 + 1 + 0 + 9 + 0 + 9 + 0 + 2).

It is a congruent number.

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, 213584374 + ... + 213584457.

It is an arithmetic number, because the mean of its divisors is an integer number (2563012992).

Almost surely, 2^17941090902 is an apocalyptic number.

17941090902 is an abundant number, since it is smaller than the sum of its proper divisors (23067116970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

17941090902 is a wasteful number, since it uses less digits than its factorization.

17941090902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427168843.

The product of its (nonzero) digits is 40824, while the sum is 42.

The spelling of 17941090902 in words is "seventeen billion, nine hundred forty-one million, ninety thousand, nine hundred two".