5263443643 has 4 divisors (see below), whose sum is σ = 5263926480. Its totient is φ = 5262960808.

The previous prime is 5263443623. The next prime is 5263443667. The reversal of 5263443643 is 3463443625.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5263443643 is a prime.

It is a super-2 number, since 2×5263443643² = 55407677966074222898, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5263443596 and 5263443605.

It is not an unprimeable number, because it can be changed into a prime (5263443613) 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, 224680 + ... + 246997.

It is an arithmetic number, because the mean of its divisors is an integer number (1315981620).

Almost surely, 2^5263443643 is an apocalyptic number.

5263443643 is a deficient number, since it is larger than the sum of its proper divisors (482837).

5263443643 is a wasteful number, since it uses less digits than its factorization.

5263443643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482836.

The product of its digits is 622080, while the sum is 40.

The square root of 5263443643 is about 72549.5943682665. The cubic root of 5263443643 is about 1739.4955646798.

The spelling of 5263443643 in words is "five billion, two hundred sixty-three million, four hundred forty-three thousand, six hundred forty-three".