2781933984008 has 8 divisors (see below), whose sum is σ = 5216126220030. Its totient is φ = 1390966992000.

The previous prime is 2781933983989. The next prime is 2781933984097. The reversal of 2781933984008 is 8004893391872.

It can be written as a sum of positive squares in only one way, i.e., 1973513613124 + 808420370884 = 1404818^2 + 899122^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173870873993 + ... + 173870874008.

Almost surely, 2^{2781933984008} is an apocalyptic number.

It is an amenable number.

2781933984008 is a deficient number, since it is larger than the sum of its proper divisors (2434192236022).

2781933984008 is a wasteful number, since it uses less digits than its factorization.

2781933984008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347741748007 (or 347741748003 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 62.

The spelling of 2781933984008 in words is "two trillion, seven hundred eighty-one billion, nine hundred thirty-three million, nine hundred eighty-four thousand, eight".