2780326563684 has 96 divisors (see below), whose sum is σ = 6848146905600. Its totient is φ = 875523064320.

The previous prime is 2780326563671. The next prime is 2780326563709. The reversal of 2780326563684 is 4863656230872.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127182747 + ... + 127204605.

It is an arithmetic number, because the mean of its divisors is an integer number (71334863600).

Almost surely, 2^{2780326563684} is an apocalyptic number.

It is an amenable number.

2780326563684 is an abundant number, since it is smaller than the sum of its proper divisors (4067820341916).

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

2780326563684 is a wasteful number, since it uses less digits than its factorization.

2780326563684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23433 (or 23431 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 60.

The spelling of 2780326563684 in words is "two trillion, seven hundred eighty billion, three hundred twenty-six million, five hundred sixty-three thousand, six hundred eighty-four".