1992976336818 has 24 divisors (see below), whose sum is σ = 4327732597500. Its totient is φ = 662845876224.

The previous prime is 1992976336783. The next prime is 1992976336823. The reversal of 1992976336818 is 8186336792991.

1992976336818 is a `hidden beast` number, since 199 + 2 + 9 + 7 + 63 + 368 + 18 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1754292303009 + 238684033809 = 1324497^2 + 488553^2 .

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123289143 + ... + 123305306.

Almost surely, 2^{1992976336818} is an apocalyptic number.

1992976336818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1992976336818 is an abundant number, since it is smaller than the sum of its proper divisors (2334756260682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1992976336818 is a wasteful number, since it uses less digits than its factorization.

1992976336818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246594906 (or 246594903 counting only the distinct ones).

The product of its digits is 211631616, while the sum is 72.

The spelling of 1992976336818 in words is "one trillion, nine hundred ninety-two billion, nine hundred seventy-six million, three hundred thirty-six thousand, eight hundred eighteen".