19050890408 has 32 divisors (see below), whose sum is σ = 39004580160. Its totient is φ = 8651306880.

The previous prime is 19050890393. The next prime is 19050890413. The reversal of 19050890408 is 80409805091.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 8285 + ... + 195372.

It is an arithmetic number, because the mean of its divisors is an integer number (1218893130).

Almost surely, 2^19050890408 is an apocalyptic number.

It is an amenable number.

19050890408 is an abundant number, since it is smaller than the sum of its proper divisors (19953689752).

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

19050890408 is a wasteful number, since it uses less digits than its factorization.

19050890408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204737 (or 204733 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 44.

The spelling of 19050890408 in words is "nineteen billion, fifty million, eight hundred ninety thousand, four hundred eight".