10844815538 has 6 divisors (see below), whose sum is σ = 16267444221. Its totient is φ = 5422334132.

The previous prime is 10844815523. The next prime is 10844815543. The reversal of 10844815538 is 83551844801.

It can be written as a sum of positive squares in 2 ways, for example, as 6533973889 + 4310841649 = 80833^2 + 65657^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=73637.

It is a super-2 number, since 2×10844815538² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10844815492 and 10844815501.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 110456 + ... + 184092.

Almost surely, 2^10844815538 is an apocalyptic number.

10844815538 is a deficient number, since it is larger than the sum of its proper divisors (5422628683).

10844815538 is an frugal number, since it uses more digits than its factorization.

10844815538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147276 (or 73639 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 47.

The spelling of 10844815538 in words is "ten billion, eight hundred forty-four million, eight hundred fifteen thousand, five hundred thirty-eight".