720762638611 has 2 divisors, whose sum is σ = 720762638612. Its totient is φ = 720762638610.

The previous prime is 720762638599. The next prime is 720762638653. The reversal of 720762638611 is 116836267027.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 720762638611 - 2¹⁹ = 720762114323 is a prime.

It is not a weakly prime, because it can be changed into another prime (720762638411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360381319305 + 360381319306.

It is an arithmetic number, because the mean of its divisors is an integer number (360381319306).

Almost surely, 2^720762638611 is an apocalyptic number.

720762638611 is a deficient number, since it is larger than the sum of its proper divisors (1).

720762638611 is an equidigital number, since it uses as much as digits as its factorization.

720762638611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 720762638611 in words is "seven hundred twenty billion, seven hundred sixty-two million, six hundred thirty-eight thousand, six hundred eleven".