720720974107 has 4 divisors (see below), whose sum is σ = 745573421520. Its totient is φ = 695868526696.

The previous prime is 720720974047. The next prime is 720720974153. The reversal of 720720974107 is 701479027027.

It is a happy number.

720720974107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-720720974107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720720977107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12426223663 + ... + 12426223720.

It is an arithmetic number, because the mean of its divisors is an integer number (186393355380).

Almost surely, 2^720720974107 is an apocalyptic number.

720720974107 is a deficient number, since it is larger than the sum of its proper divisors (24852447413).

720720974107 is a wasteful number, since it uses less digits than its factorization.

720720974107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24852447412.

The product of its (nonzero) digits is 345744, while the sum is 46.

The spelling of 720720974107 in words is "seven hundred twenty billion, seven hundred twenty million, nine hundred seventy-four thousand, one hundred seven".