2771197998 has 16 divisors (see below), whose sum is σ = 5543037696. Its totient is φ = 923625720.

The previous prime is 2771197981. The next prime is 2771198009. The reversal of 2771197998 is 8997911772.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43665 + ... + 86307.

It is an arithmetic number, because the mean of its divisors is an integer number (346439856).

Almost surely, 2^2771197998 is an apocalyptic number.

2771197998 is an abundant number, since it is smaller than the sum of its proper divisors (2771839698).

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

2771197998 is a wasteful number, since it uses less digits than its factorization.

2771197998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53479.

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

The square root of 2771197998 is about 52642.1693891884. The cubic root of 2771197998 is about 1404.6103110785.

The spelling of 2771197998 in words is "two billion, seven hundred seventy-one million, one hundred ninety-seven thousand, nine hundred ninety-eight".