2687125979 has 2 divisors, whose sum is σ = 2687125980. Its totient is φ = 2687125978.

The previous prime is 2687125933. The next prime is 2687125981. The reversal of 2687125979 is 9795217862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2687125979 - 2²⁸ = 2418690523 is a prime.

Together with 2687125981, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2687125279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1343562989 + 1343562990.

It is an arithmetic number, because the mean of its divisors is an integer number (1343562990).

Almost surely, 2^2687125979 is an apocalyptic number.

2687125979 is a deficient number, since it is larger than the sum of its proper divisors (1).

2687125979 is an equidigital number, since it uses as much as digits as its factorization.

2687125979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3810240, while the sum is 56.

The square root of 2687125979 is about 51837.4958789485. The cubic root of 2687125979 is about 1390.2599412070.

The spelling of 2687125979 in words is "two billion, six hundred eighty-seven million, one hundred twenty-five thousand, nine hundred seventy-nine".