2697891128 has 16 divisors (see below), whose sum is σ = 5059698480. Its totient is φ = 1348638208.

The previous prime is 2697891071. The next prime is 2697891151. The reversal of 2697891128 is 8211987962.

It is a super-2 number, since 2×2697891128² = 14557233077082224768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2697891128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1301 + ... + 73467.

It is an arithmetic number, because the mean of its divisors is an integer number (316231155).

Almost surely, 2^2697891128 is an apocalyptic number.

It is an amenable number.

2697891128 is a deficient number, since it is larger than the sum of its proper divisors (2361807352).

2697891128 is a wasteful number, since it uses less digits than its factorization.

2697891128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76846 (or 76842 counting only the distinct ones).

The product of its digits is 870912, while the sum is 53.

The square root of 2697891128 is about 51941.2276327774. The cubic root of 2697891128 is about 1392.1140179980.

The spelling of 2697891128 in words is "two billion, six hundred ninety-seven million, eight hundred ninety-one thousand, one hundred twenty-eight".