1992180308911 has 8 divisors (see below), whose sum is σ = 2145436517840. Its totient is φ = 1838925752832.

The previous prime is 1992180308897. The next prime is 1992180308981. The reversal of 1992180308911 is 1198030812991.

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

It is a cyclic number.

It is not a de Polignac number, because 1992180308911 - 2⁹ = 1992180308399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992180308981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3379471 + ... + 3924943.

It is an arithmetic number, because the mean of its divisors is an integer number (268179564730).

Almost surely, 2^{1992180308911} is an apocalyptic number.

1992180308911 is a deficient number, since it is larger than the sum of its proper divisors (153256208929).

1992180308911 is a wasteful number, since it uses less digits than its factorization.

1992180308911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826425.

The product of its (nonzero) digits is 279936, while the sum is 52.

The spelling of 1992180308911 in words is "one trillion, nine hundred ninety-two billion, one hundred eighty million, three hundred eight thousand, nine hundred eleven".