72652445647 has 2 divisors, whose sum is σ = 72652445648. Its totient is φ = 72652445646.

The previous prime is 72652445623. The next prime is 72652445659. The reversal of 72652445647 is 74654425627.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72652445647 - 2²³ = 72644057039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72652445594 and 72652445603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72652445447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36326222823 + 36326222824.

It is an arithmetic number, because the mean of its divisors is an integer number (36326222824).

Almost surely, 2^72652445647 is an apocalyptic number.

72652445647 is a deficient number, since it is larger than the sum of its proper divisors (1).

72652445647 is an equidigital number, since it uses as much as digits as its factorization.

72652445647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11289600, while the sum is 52.

The spelling of 72652445647 in words is "seventy-two billion, six hundred fifty-two million, four hundred forty-five thousand, six hundred forty-seven".