72760215667 has 2 divisors, whose sum is σ = 72760215668. Its totient is φ = 72760215666.

The previous prime is 72760215641. The next prime is 72760215707. The reversal of 72760215667 is 76651206727.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72760215667 - 2¹¹ = 72760213619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72760215667.

It is not a weakly prime, because it can be changed into another prime (72760215767) 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, 36380107833 + 36380107834.

It is an arithmetic number, because the mean of its divisors is an integer number (36380107834).

Almost surely, 2^72760215667 is an apocalyptic number.

72760215667 is a deficient number, since it is larger than the sum of its proper divisors (1).

72760215667 is an equidigital number, since it uses as much as digits as its factorization.

72760215667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1481760, while the sum is 49.

The spelling of 72760215667 in words is "seventy-two billion, seven hundred sixty million, two hundred fifteen thousand, six hundred sixty-seven".