72300023443 has 4 divisors (see below), whose sum is σ = 72301840600. Its totient is φ = 72298206288.

The previous prime is 72300023413. The next prime is 72300023461. The reversal of 72300023443 is 34432000327.

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-72300023443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72300023413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 847530 + ... + 928927.

It is an arithmetic number, because the mean of its divisors is an integer number (18075460150).

Almost surely, 2^72300023443 is an apocalyptic number.

72300023443 is a deficient number, since it is larger than the sum of its proper divisors (1817157).

72300023443 is a wasteful number, since it uses less digits than its factorization.

72300023443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1817156.

The product of its (nonzero) digits is 12096, while the sum is 28.

The spelling of 72300023443 in words is "seventy-two billion, three hundred million, twenty-three thousand, four hundred forty-three".