191083428974 has 8 divisors (see below), whose sum is σ = 291483196920. Its totient is φ = 93922363336.

The previous prime is 191083428961. The next prime is 191083428989. The reversal of 191083428974 is 479824380191.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 809675429 + ... + 809675664.

It is an arithmetic number, because the mean of its divisors is an integer number (36435399615).

Almost surely, 2^191083428974 is an apocalyptic number.

191083428974 is a deficient number, since it is larger than the sum of its proper divisors (100399767946).

191083428974 is a wasteful number, since it uses less digits than its factorization.

191083428974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619351154.

The product of its (nonzero) digits is 3483648, while the sum is 56.

The spelling of 191083428974 in words is "one hundred ninety-one billion, eighty-three million, four hundred twenty-eight thousand, nine hundred seventy-four".