2981194338816 has 120 divisors (see below), whose sum is σ = 8836467832764. Its totient is φ = 966873784320.

The previous prime is 2981194338791. The next prime is 2981194338851. The reversal of 2981194338816 is 6188334911892.

2981194338816 is a `hidden beast` number, since 2 + 9 + 8 + 119 + 433 + 8 + 81 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2964953385216 + 16240953600 = 1721904^2 + 127440^2 .

It is a nude number because it is divisible by every one of its digits.

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, 8572215 + ... + 8913206.

Almost surely, 2^{2981194338816} is an apocalyptic number.

It is an amenable number.

2981194338816 is an abundant number, since it is smaller than the sum of its proper divisors (5855273493948).

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

2981194338816 is a wasteful number, since it uses less digits than its factorization.

2981194338816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17485482 (or 17485463 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 63.

The spelling of 2981194338816 in words is "two trillion, nine hundred eighty-one billion, one hundred ninety-four million, three hundred thirty-eight thousand, eight hundred sixteen".