2798686024778 has 24 divisors (see below), whose sum is σ = 5140443722400. Its totient is φ = 1136308610808.

The previous prime is 2798686024753. The next prime is 2798686024811. The reversal of 2798686024778 is 8774206868972.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 751524998 + ... + 751528721.

It is an arithmetic number, because the mean of its divisors is an integer number (214185155100).

Almost surely, 2^{2798686024778} is an apocalyptic number.

2798686024778 is a deficient number, since it is larger than the sum of its proper divisors (2341757697622).

2798686024778 is a wasteful number, since it uses less digits than its factorization.

2798686024778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1503053754 (or 1503053747 counting only the distinct ones).

The product of its (nonzero) digits is 910393344, while the sum is 74.

The spelling of 2798686024778 in words is "two trillion, seven hundred ninety-eight billion, six hundred eighty-six million, twenty-four thousand, seven hundred seventy-eight".