72353023543 has 4 divisors (see below), whose sum is σ = 72353625880. Its totient is φ = 72352421208.

The previous prime is 72353023541. The next prime is 72353023573. The reversal of 72353023543 is 34532035327.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 72353023543 - 2¹ = 72353023541 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 (72353023541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52605 + ... + 384022.

It is an arithmetic number, because the mean of its divisors is an integer number (18088406470).

Almost surely, 2^72353023543 is an apocalyptic number.

72353023543 is a deficient number, since it is larger than the sum of its proper divisors (602337).

72353023543 is a wasteful number, since it uses less digits than its factorization.

72353023543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602336.

The product of its (nonzero) digits is 226800, while the sum is 37.

The spelling of 72353023543 in words is "seventy-two billion, three hundred fifty-three million, twenty-three thousand, five hundred forty-three".