2190838667 has 2 divisors, whose sum is σ = 2190838668. Its totient is φ = 2190838666.

The previous prime is 2190838627. The next prime is 2190838703. The reversal of 2190838667 is 7668380912.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2190838667 - 2²⁴ = 2174061451 is a prime.

It is not a weakly prime, because it can be changed into another prime (2190838627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1095419333 + 1095419334.

It is an arithmetic number, because the mean of its divisors is an integer number (1095419334).

Almost surely, 2^2190838667 is an apocalyptic number.

2190838667 is a deficient number, since it is larger than the sum of its proper divisors (1).

2190838667 is an equidigital number, since it uses as much as digits as its factorization.

2190838667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 2190838667 is about 46806.3955779549. The cubic root of 2190838667 is about 1298.7836091388.

The spelling of 2190838667 in words is "two billion, one hundred ninety million, eight hundred thirty-eight thousand, six hundred sixty-seven".