10402444543 has 4 divisors (see below), whose sum is σ = 10406333080. Its totient is φ = 10398556008.

The previous prime is 10402444541. The next prime is 10402444561. The reversal of 10402444543 is 34544420401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34544420401 = 53 ⋅651781517.

It is a cyclic number.

It is not a de Polignac number, because 10402444543 - 2¹ = 10402444541 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 (10402444541) 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, 1940253 + ... + 1945606.

It is an arithmetic number, because the mean of its divisors is an integer number (2601583270).

Almost surely, 2^10402444543 is an apocalyptic number.

10402444543 is a deficient number, since it is larger than the sum of its proper divisors (3888537).

10402444543 is an equidigital number, since it uses as much as digits as its factorization.

10402444543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3888536.

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 10402444543 its reverse (34544420401), we get a palindrome (44946864944).

The spelling of 10402444543 in words is "ten billion, four hundred two million, four hundred forty-four thousand, five hundred forty-three".