72423667751 has 2 divisors, whose sum is σ = 72423667752. Its totient is φ = 72423667750.

The previous prime is 72423667711. The next prime is 72423667859. The reversal of 72423667751 is 15776632427.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72423667751 - 2²⁶ = 72356558887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72423667751.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72423667711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36211833875 + 36211833876.

It is an arithmetic number, because the mean of its divisors is an integer number (36211833876).

Almost surely, 2^72423667751 is an apocalyptic number.

72423667751 is a deficient number, since it is larger than the sum of its proper divisors (1).

72423667751 is an equidigital number, since it uses as much as digits as its factorization.

72423667751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2963520, while the sum is 50.

The spelling of 72423667751 in words is "seventy-two billion, four hundred twenty-three million, six hundred sixty-seven thousand, seven hundred fifty-one".