72646714523 has 2 divisors, whose sum is σ = 72646714524. Its totient is φ = 72646714522.

The previous prime is 72646714477. The next prime is 72646714577. The reversal of 72646714523 is 32541764627.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72646714523 - 2⁸ = 72646714267 is a prime.

It is not a weakly prime, because it can be changed into another prime (72646714583) 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, 36323357261 + 36323357262.

It is an arithmetic number, because the mean of its divisors is an integer number (36323357262).

Almost surely, 2^72646714523 is an apocalyptic number.

72646714523 is a deficient number, since it is larger than the sum of its proper divisors (1).

72646714523 is an equidigital number, since it uses as much as digits as its factorization.

72646714523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 47.

The spelling of 72646714523 in words is "seventy-two billion, six hundred forty-six million, seven hundred fourteen thousand, five hundred twenty-three".