72448720601 has 2 divisors, whose sum is σ = 72448720602. Its totient is φ = 72448720600.

The previous prime is 72448720567. The next prime is 72448720613. The reversal of 72448720601 is 10602784427.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71599056400 + 849664201 = 267580^2 + 29149^2 .

It is a cyclic number.

It is not a de Polignac number, because 72448720601 - 2²⁶ = 72381611737 is a prime.

It is not a weakly prime, because it can be changed into another prime (72448720691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36224360300 + 36224360301.

It is an arithmetic number, because the mean of its divisors is an integer number (36224360301).

Almost surely, 2^72448720601 is an apocalyptic number.

It is an amenable number.

72448720601 is a deficient number, since it is larger than the sum of its proper divisors (1).

72448720601 is an equidigital number, since it uses as much as digits as its factorization.

72448720601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 150528, while the sum is 41.

The spelling of 72448720601 in words is "seventy-two billion, four hundred forty-eight million, seven hundred twenty thousand, six hundred one".