2115670867 has 2 divisors, whose sum is σ = 2115670868. Its totient is φ = 2115670866.

The previous prime is 2115670813. The next prime is 2115670873. The reversal of 2115670867 is 7680765112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2115670867 is a prime.

It is not a weakly prime, because it can be changed into another prime (2115670897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1057835433 + 1057835434.

It is an arithmetic number, because the mean of its divisors is an integer number (1057835434).

Almost surely, 2^2115670867 is an apocalyptic number.

2115670867 is a deficient number, since it is larger than the sum of its proper divisors (1).

2115670867 is an equidigital number, since it uses as much as digits as its factorization.

2115670867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 2115670867 is about 45996.4223282637. The cubic root of 2115670867 is about 1283.7566370987.

The spelling of 2115670867 in words is "two billion, one hundred fifteen million, six hundred seventy thousand, eight hundred sixty-seven".