191450748994 has 8 divisors (see below), whose sum is σ = 287288705088. Its totient is φ = 95687847300.

The previous prime is 191450748989. The next prime is 191450748997. The reversal of 191450748994 is 499847054191.

191450748994 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (191450748997) 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, 18757222 + ... + 18767425.

It is an arithmetic number, because the mean of its divisors is an integer number (35911088136).

Almost surely, 2^191450748994 is an apocalyptic number.

191450748994 is a deficient number, since it is larger than the sum of its proper divisors (95837956094).

191450748994 is a wasteful number, since it uses less digits than its factorization.

191450748994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37527200.

The product of its (nonzero) digits is 13063680, while the sum is 61.

The spelling of 191450748994 in words is "one hundred ninety-one billion, four hundred fifty million, seven hundred forty-eight thousand, nine hundred ninety-four".