190449675838 has 8 divisors (see below), whose sum is σ = 285751796832. Its totient is φ = 95199076896.

The previous prime is 190449675827. The next prime is 190449675851. The reversal of 190449675838 is 838576944091.

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

It is a self number, because there is not a number n which added to its sum of digits gives 190449675838.

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, 12871270 + ... + 12886057.

It is an arithmetic number, because the mean of its divisors is an integer number (35718974604).

Almost surely, 2^190449675838 is an apocalyptic number.

190449675838 is a deficient number, since it is larger than the sum of its proper divisors (95302120994).

190449675838 is a wasteful number, since it uses less digits than its factorization.

190449675838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25761026.

The product of its (nonzero) digits is 52254720, while the sum is 64.

The spelling of 190449675838 in words is "one hundred ninety billion, four hundred forty-nine million, six hundred seventy-five thousand, eight hundred thirty-eight".