72967276727 has 2 divisors, whose sum is σ = 72967276728. Its totient is φ = 72967276726.

The previous prime is 72967276721. The next prime is 72967276729. The reversal of 72967276727 is 72767276927.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72967276727 - 2²⁰ = 72966228151 is a prime.

Together with 72967276729, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 72967276727.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72967276721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36483638363 + 36483638364.

It is an arithmetic number, because the mean of its divisors is an integer number (36483638364).

Almost surely, 2^72967276727 is an apocalyptic number.

72967276727 is a deficient number, since it is larger than the sum of its proper divisors (1).

72967276727 is an equidigital number, since it uses as much as digits as its factorization.

72967276727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43563744, while the sum is 62.

The spelling of 72967276727 in words is "seventy-two billion, nine hundred sixty-seven million, two hundred seventy-six thousand, seven hundred twenty-seven".