2798368155 has 80 divisors (see below), whose sum is σ = 5512953600. Its totient is φ = 1346725440.

The previous prime is 2798368123. The next prime is 2798368207. The reversal of 2798368155 is 5518638972.

2798368155 is a `hidden beast` number, since 279 + 8 + 368 + 1 + 5 + 5 = 666.

It is not a de Polignac number, because 2798368155 - 2⁵ = 2798368123 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 616986 + ... + 621504.

It is an arithmetic number, because the mean of its divisors is an integer number (68911920).

Almost surely, 2^2798368155 is an apocalyptic number.

2798368155 is a deficient number, since it is larger than the sum of its proper divisors (2714585445).

2798368155 is a wasteful number, since it uses less digits than its factorization.

2798368155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4686 (or 4677 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The square root of 2798368155 is about 52899.6044881245. The cubic root of 2798368155 is about 1409.1858813174.

The spelling of 2798368155 in words is "two billion, seven hundred ninety-eight million, three hundred sixty-eight thousand, one hundred fifty-five".