2687078297 has 2 divisors, whose sum is σ = 2687078298. Its totient is φ = 2687078296.

The previous prime is 2687078281. The next prime is 2687078311. The reversal of 2687078297 is 7928707862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2486119321 + 200958976 = 49861^2 + 14176^2 .

It is a cyclic number.

It is not a de Polignac number, because 2687078297 - 2⁴ = 2687078281 is a prime.

It is not a weakly prime, because it can be changed into another prime (2687078257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1343539148 + 1343539149.

It is an arithmetic number, because the mean of its divisors is an integer number (1343539149).

Almost surely, 2^2687078297 is an apocalyptic number.

It is an amenable number.

2687078297 is a deficient number, since it is larger than the sum of its proper divisors (1).

2687078297 is an equidigital number, since it uses as much as digits as its factorization.

2687078297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4741632, while the sum is 56.

The square root of 2687078297 is about 51837.0359588586. The cubic root of 2687078297 is about 1390.2517179519.

The spelling of 2687078297 in words is "two billion, six hundred eighty-seven million, seventy-eight thousand, two hundred ninety-seven".