2781933983994 has 32 divisors (see below), whose sum is σ = 6333573026304. Its totient is φ = 806357676080.

The previous prime is 2781933983989. The next prime is 2781933984097. The reversal of 2781933983994 is 4993893391872.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 916314024 + ... + 916317059.

It is an arithmetic number, because the mean of its divisors is an integer number (197924157072).

Almost surely, 2^{2781933983994} is an apocalyptic number.

2781933983994 is an abundant number, since it is smaller than the sum of its proper divisors (3551639042310).

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

2781933983994 is a wasteful number, since it uses less digits than its factorization.

2781933983994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832631122.

The product of its digits is 634894848, while the sum is 75.

The spelling of 2781933983994 in words is "two trillion, seven hundred eighty-one billion, nine hundred thirty-three million, nine hundred eighty-three thousand, nine hundred ninety-four".