720479424757 has 2 divisors, whose sum is σ = 720479424758. Its totient is φ = 720479424756.

The previous prime is 720479424647. The next prime is 720479424767. The reversal of 720479424757 is 757424974027.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 417582194436 + 302897230321 = 646206^2 + 550361^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-720479424757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (720479424767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360239712378 + 360239712379.

It is an arithmetic number, because the mean of its divisors is an integer number (360239712379).

Almost surely, 2^720479424757 is an apocalyptic number.

It is an amenable number.

720479424757 is a deficient number, since it is larger than the sum of its proper divisors (1).

720479424757 is an equidigital number, since it uses as much as digits as its factorization.

720479424757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27659520, while the sum is 58.

The spelling of 720479424757 in words is "seven hundred twenty billion, four hundred seventy-nine million, four hundred twenty-four thousand, seven hundred fifty-seven".