2798104698721 has 16 divisors (see below), whose sum is σ = 2854667116224. Its totient is φ = 2742131441664.

The previous prime is 2798104698703. The next prime is 2798104698757. The reversal of 2798104698721 is 1278964018972.

2798104698721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2798104698721 - 2¹⁵ = 2798104665953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2798104698421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23220001 + ... + 23340193.

It is an arithmetic number, because the mean of its divisors is an integer number (178416694764).

Almost surely, 2^{2798104698721} is an apocalyptic number.

It is an amenable number.

2798104698721 is a deficient number, since it is larger than the sum of its proper divisors (56562417503).

2798104698721 is a wasteful number, since it uses less digits than its factorization.

2798104698721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122640.

The product of its (nonzero) digits is 24385536, while the sum is 64.

The spelling of 2798104698721 in words is "two trillion, seven hundred ninety-eight billion, one hundred four million, six hundred ninety-eight thousand, seven hundred twenty-one".