623693120713 has 16 divisors (see below), whose sum is σ = 678478791312. Its totient is φ = 569882880000.

The previous prime is 623693120707. The next prime is 623693120717. The reversal of 623693120713 is 317021396326.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 7535628864 + 616157491849 = 86808^2 + 784957^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-623693120713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 623693120713.

It is not an unprimeable number, because it can be changed into a prime (623693120717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5777553 + ... + 5884513.

It is an arithmetic number, because the mean of its divisors is an integer number (42404924457).

Almost surely, 2^623693120713 is an apocalyptic number.

It is an amenable number.

623693120713 is a deficient number, since it is larger than the sum of its proper divisors (54785670599).

623693120713 is a wasteful number, since it uses less digits than its factorization.

623693120713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111516.

The product of its (nonzero) digits is 244944, while the sum is 43.

The spelling of 623693120713 in words is "six hundred twenty-three billion, six hundred ninety-three million, one hundred twenty thousand, seven hundred thirteen".