4353640020543 has 32 divisors (see below), whose sum is σ = 6540434138880. Its totient is φ = 2553322487040.

The previous prime is 4353640020539. The next prime is 4353640020563. The reversal of 4353640020543 is 3450200463534.

It is not a de Polignac number, because 4353640020543 - 2² = 4353640020539 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4353640020563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16921753 + ... + 17177106.

It is an arithmetic number, because the mean of its divisors is an integer number (204388566840).

Almost surely, 2^{4353640020543} is an apocalyptic number.

4353640020543 is a deficient number, since it is larger than the sum of its proper divisors (2186794118337).

4353640020543 is a wasteful number, since it uses less digits than its factorization.

4353640020543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34098999.

The product of its (nonzero) digits is 518400, while the sum is 39.

The spelling of 4353640020543 in words is "four trillion, three hundred fifty-three billion, six hundred forty million, twenty thousand, five hundred forty-three".