2797191798 has 64 divisors (see below), whose sum is σ = 6040500480. Its totient is φ = 860378112.

The previous prime is 2797191791. The next prime is 2797191821. The reversal of 2797191798 is 8971917972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2797191791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1175586 + ... + 1177962.

It is an arithmetic number, because the mean of its divisors is an integer number (94382820).

Almost surely, 2^2797191798 is an apocalyptic number.

2797191798 is an abundant number, since it is smaller than the sum of its proper divisors (3243308682).

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

2797191798 is a wasteful number, since it uses less digits than its factorization.

2797191798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2621.

The product of its digits is 4000752, while the sum is 60.

The square root of 2797191798 is about 52888.4845500417. The cubic root of 2797191798 is about 1408.9883926474.

The spelling of 2797191798 in words is "two billion, seven hundred ninety-seven million, one hundred ninety-one thousand, seven hundred ninety-eight".