2697945081 has 16 divisors (see below), whose sum is σ = 4007559360. Its totient is φ = 1603022400.

The previous prime is 2697945049. The next prime is 2697945119. The reversal of 2697945081 is 1805497962.

It is not a de Polignac number, because 2697945081 - 2⁵ = 2697945049 is a prime.

It is a super-2 number, since 2×2697945081² = 14557815320184193122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2697940081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1191595 + ... + 1193856.

It is an arithmetic number, because the mean of its divisors is an integer number (250472460).

Almost surely, 2^2697945081 is an apocalyptic number.

It is an amenable number.

2697945081 is a deficient number, since it is larger than the sum of its proper divisors (1309614279).

2697945081 is a wasteful number, since it uses less digits than its factorization.

2697945081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2385496.

The product of its (nonzero) digits is 1088640, while the sum is 51.

The square root of 2697945081 is about 51941.7469960339. The cubic root of 2697945081 is about 1392.1232978668.

The spelling of 2697945081 in words is "two billion, six hundred ninety-seven million, nine hundred forty-five thousand, eighty-one".