190919109190900 has 72 divisors (see below), whose sum is σ = 421679898259200. Its totient is φ = 75014211888000.

The previous prime is 190919109190853. The next prime is 190919109190921. The reversal of 190919109190900 is 9091901919091.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47688475 + ... + 51536674.

It is an arithmetic number, because the mean of its divisors is an integer number (5856665253600).

Almost surely, 2^{190919109190900} is an apocalyptic number.

190919109190900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190919109190900 is an abundant number, since it is smaller than the sum of its proper divisors (230760789068300).

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

190919109190900 is a wasteful number, since it uses less digits than its factorization.

190919109190900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99225505 (or 99225498 counting only the distinct ones).

The product of its (nonzero) digits is 531441, while the sum is 58.

The spelling of 190919109190900 in words is "one hundred ninety trillion, nine hundred nineteen billion, one hundred nine million, one hundred ninety thousand, nine hundred".