556764747073 has 4 divisors (see below), whose sum is σ = 558521103060. Its totient is φ = 555008391088.

The previous prime is 556764747023. The next prime is 556764747089. The reversal of 556764747073 is 370747467655.

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

It can be written as a sum of positive squares in 2 ways, for example, as 34307559729 + 522457187344 = 185223^2 + 722812^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556764747073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556764747023) 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, 878177518 + ... + 878178151.

It is an arithmetic number, because the mean of its divisors is an integer number (139630275765).

Almost surely, 2^556764747073 is an apocalyptic number.

It is an amenable number.

556764747073 is a deficient number, since it is larger than the sum of its proper divisors (1756355987).

556764747073 is a wasteful number, since it uses less digits than its factorization.

556764747073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1756355986.

The product of its (nonzero) digits is 103723200, while the sum is 61.

The spelling of 556764747073 in words is "five hundred fifty-six billion, seven hundred sixty-four million, seven hundred forty-seven thousand, seventy-three".