191982608662 has 8 divisors (see below), whose sum is σ = 310125752496. Its totient is φ = 88607357832.

The previous prime is 191982608651. The next prime is 191982608669. The reversal of 191982608662 is 266806289191.

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

It is a junction number, because it is equal to n+sod(n) for n = 191982608597 and 191982608606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191982608669) 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, 3691973218 + ... + 3691973269.

It is an arithmetic number, because the mean of its divisors is an integer number (38765719062).

Almost surely, 2^191982608662 is an apocalyptic number.

191982608662 is a deficient number, since it is larger than the sum of its proper divisors (118143143834).

191982608662 is a wasteful number, since it uses less digits than its factorization.

191982608662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7383946502.

The product of its (nonzero) digits is 4478976, while the sum is 58.

The spelling of 191982608662 in words is "one hundred ninety-one billion, nine hundred eighty-two million, six hundred eight thousand, six hundred sixty-two".