190801678091 has 12 divisors (see below), whose sum is σ = 202711657920. Its totient is φ = 179554892160.

The previous prime is 190801678069. The next prime is 190801678103. The reversal of 190801678091 is 190876108091.

190801678091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-190801678091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190801678051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2455526 + ... + 2532036.

It is an arithmetic number, because the mean of its divisors is an integer number (16892638160).

Almost surely, 2^190801678091 is an apocalyptic number.

190801678091 is a deficient number, since it is larger than the sum of its proper divisors (11909979829).

190801678091 is an equidigital number, since it uses as much as digits as its factorization.

190801678091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85174 (or 85157 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 50.

The spelling of 190801678091 in words is "one hundred ninety billion, eight hundred one million, six hundred seventy-eight thousand, ninety-one".