72433007663 has 4 divisors (see below), whose sum is σ = 72448061928. Its totient is φ = 72417953400.

The previous prime is 72433007657. The next prime is 72433007677. The reversal of 72433007663 is 36670033427.

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

It is a cyclic number.

It is not a de Polignac number, because 72433007663 - 2¹² = 72433003567 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72433007663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72433007063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7519913 + ... + 7529538.

It is an arithmetic number, because the mean of its divisors is an integer number (18112015482).

Almost surely, 2^72433007663 is an apocalyptic number.

72433007663 is a deficient number, since it is larger than the sum of its proper divisors (15054265).

72433007663 is a wasteful number, since it uses less digits than its factorization.

72433007663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15054264.

The product of its (nonzero) digits is 381024, while the sum is 41.

The spelling of 72433007663 in words is "seventy-two billion, four hundred thirty-three million, seven thousand, six hundred sixty-three".