10043815772813 has 4 divisors (see below), whose sum is σ = 10053211298460. Its totient is φ = 10034420247168.

The previous prime is 10043815772777. The next prime is 10043815772821. The reversal of 10043815772813 is 31827751834001.

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 6806270507689 + 3237545265124 = 2608883^2 + 1799318^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10043815772813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10043815772833) 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, 4697761220 + ... + 4697763357.

It is an arithmetic number, because the mean of its divisors is an integer number (2513302824615).

Almost surely, 2^{10043815772813} is an apocalyptic number.

It is an amenable number.

10043815772813 is a deficient number, since it is larger than the sum of its proper divisors (9395525647).

10043815772813 is an equidigital number, since it uses as much as digits as its factorization.

10043815772813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9395525646.

The product of its (nonzero) digits is 1128960, while the sum is 50.

The spelling of 10043815772813 in words is "ten trillion, forty-three billion, eight hundred fifteen million, seven hundred seventy-two thousand, eight hundred thirteen".