273640237667 has 2 divisors, whose sum is σ = 273640237668. Its totient is φ = 273640237666.

The previous prime is 273640237643. The next prime is 273640237679. The reversal of 273640237667 is 766732046372.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-273640237667 is a prime.

It is not a weakly prime, because it can be changed into another prime (273640237067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136820118833 + 136820118834.

It is an arithmetic number, because the mean of its divisors is an integer number (136820118834).

Almost surely, 2^273640237667 is an apocalyptic number.

273640237667 is a deficient number, since it is larger than the sum of its proper divisors (1).

273640237667 is an equidigital number, since it uses as much as digits as its factorization.

273640237667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10668672, while the sum is 53.

The spelling of 273640237667 in words is "two hundred seventy-three billion, six hundred forty million, two hundred thirty-seven thousand, six hundred sixty-seven".