2687886667 has 2 divisors, whose sum is σ = 2687886668. Its totient is φ = 2687886666.

The previous prime is 2687886653. The next prime is 2687886727. The reversal of 2687886667 is 7666887862.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2687886667 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2687886599 and 2687886608.

It is not a weakly prime, because it can be changed into another prime (2687886647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1343943333 + 1343943334.

It is an arithmetic number, because the mean of its divisors is an integer number (1343943334).

Almost surely, 2^2687886667 is an apocalyptic number.

2687886667 is a deficient number, since it is larger than the sum of its proper divisors (1).

2687886667 is an equidigital number, since it uses as much as digits as its factorization.

2687886667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 65028096, while the sum is 64.

The square root of 2687886667 is about 51844.8325968944. The cubic root of 2687886667 is about 1390.3911165823.

The spelling of 2687886667 in words is "two billion, six hundred eighty-seven million, eight hundred eighty-six thousand, six hundred sixty-seven".