270991841867 has 2 divisors, whose sum is σ = 270991841868. Its totient is φ = 270991841866.

The previous prime is 270991841779. The next prime is 270991841893. The reversal of 270991841867 is 768148199072.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 270991841867 - 2²⁸ = 270723406411 is a prime.

It is not a weakly prime, because it can be changed into another prime (270991841167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135495920933 + 135495920934.

It is an arithmetic number, because the mean of its divisors is an integer number (135495920934).

Almost surely, 2^270991841867 is an apocalyptic number.

270991841867 is a deficient number, since it is larger than the sum of its proper divisors (1).

270991841867 is an equidigital number, since it uses as much as digits as its factorization.

270991841867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12192768, while the sum is 62.

The spelling of 270991841867 in words is "two hundred seventy billion, nine hundred ninety-one million, eight hundred forty-one thousand, eight hundred sixty-seven".