2797957998 has 128 divisors (see below), whose sum is σ = 7009390080. Its totient is φ = 819936000.

The previous prime is 2797957997. The next prime is 2797958047. The reversal of 2797957998 is 8997597972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2797957991) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3189936 + ... + 3190812.

It is an arithmetic number, because the mean of its divisors is an integer number (54760860).

Almost surely, 2^2797957998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2797957998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3504695040).

2797957998 is an abundant number, since it is smaller than the sum of its proper divisors (4211432082).

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

2797957998 is a wasteful number, since it uses less digits than its factorization.

2797957998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071 (or 1065 counting only the distinct ones).

The product of its digits is 180033840, while the sum is 72.

The square root of 2797957998 is about 52895.7275968485. The cubic root of 2797957998 is about 1409.1170297984.

The spelling of 2797957998 in words is "two billion, seven hundred ninety-seven million, nine hundred fifty-seven thousand, nine hundred ninety-eight".