2897681456 has 10 divisors (see below), whose sum is σ = 5614257852. Its totient is φ = 1448840720.

The previous prime is 2897681453. The next prime is 2897681477. The reversal of 2897681456 is 6541867982.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2897681453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90552530 + ... + 90552561.

Almost surely, 2^2897681456 is an apocalyptic number.

It is an amenable number.

2897681456 is a deficient number, since it is larger than the sum of its proper divisors (2716576396).

2897681456 is a wasteful number, since it uses less digits than its factorization.

2897681456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181105099 (or 181105093 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 56.

The square root of 2897681456 is about 53830.1166262902. The cubic root of 2897681456 is about 1425.6630063019.

The spelling of 2897681456 in words is "two billion, eight hundred ninety-seven million, six hundred eighty-one thousand, four hundred fifty-six".