191173381292 has 6 divisors (see below), whose sum is σ = 334553417268. Its totient is φ = 95586690644.

The previous prime is 191173381249. The next prime is 191173381303. The reversal of 191173381292 is 292183371191.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23896672658 + ... + 23896672665.

It is an arithmetic number, because the mean of its divisors is an integer number (55758902878).

Almost surely, 2^191173381292 is an apocalyptic number.

It is an amenable number.

191173381292 is a deficient number, since it is larger than the sum of its proper divisors (143380035976).

191173381292 is a wasteful number, since it uses less digits than its factorization.

191173381292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47793345327 (or 47793345325 counting only the distinct ones).

The product of its digits is 163296, while the sum is 47.

The spelling of 191173381292 in words is "one hundred ninety-one billion, one hundred seventy-three million, three hundred eighty-one thousand, two hundred ninety-two".