720479424647 has 2 divisors, whose sum is σ = 720479424648. Its totient is φ = 720479424646.

The previous prime is 720479424617. The next prime is 720479424757. The reversal of 720479424647 is 746424974027.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 720479424647 - 2⁸ = 720479424391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 720479424592 and 720479424601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (720479424617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360239712323 + 360239712324.

It is an arithmetic number, because the mean of its divisors is an integer number (360239712324).

Almost surely, 2^720479424647 is an apocalyptic number.

720479424647 is a deficient number, since it is larger than the sum of its proper divisors (1).

720479424647 is an equidigital number, since it uses as much as digits as its factorization.

720479424647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18966528, while the sum is 56.

The spelling of 720479424647 in words is "seven hundred twenty billion, four hundred seventy-nine million, four hundred twenty-four thousand, six hundred forty-seven".