190846781128 has 16 divisors (see below), whose sum is σ = 373395876480. Its totient is φ = 91274547408.

The previous prime is 190846781119. The next prime is 190846781129. The reversal of 190846781128 is 821187648091.

It is not an unprimeable number, because it can be changed into a prime (190846781129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 518605200 + ... + 518605567.

It is an arithmetic number, because the mean of its divisors is an integer number (23337242280).

Almost surely, 2^190846781128 is an apocalyptic number.

It is an amenable number.

190846781128 is a deficient number, since it is larger than the sum of its proper divisors (182549095352).

190846781128 is a wasteful number, since it uses less digits than its factorization.

190846781128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037210796 (or 1037210792 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 55.

The spelling of 190846781128 in words is "one hundred ninety billion, eight hundred forty-six million, seven hundred eighty-one thousand, one hundred twenty-eight".