3643323772543 has 16 divisors (see below), whose sum is σ = 4490656160256. Its totient is φ = 2878409207520.

The previous prime is 3643323772541. The next prime is 3643323772549. The reversal of 3643323772543 is 3452773233463.

It is not a de Polignac number, because 3643323772543 - 2¹ = 3643323772541 is a prime.

It is a super-2 number, since 2×3643323772543² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3643323772541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29247163 + ... + 29371468.

It is an arithmetic number, because the mean of its divisors is an integer number (280666010016).

Almost surely, 2^{3643323772543} is an apocalyptic number.

3643323772543 is a deficient number, since it is larger than the sum of its proper divisors (847332387713).

3643323772543 is a wasteful number, since it uses less digits than its factorization.

3643323772543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58619334.

The product of its digits is 22861440, while the sum is 52.

The spelling of 3643323772543 in words is "three trillion, six hundred forty-three billion, three hundred twenty-three million, seven hundred seventy-two thousand, five hundred forty-three".