73044233663 has 4 divisors (see below), whose sum is σ = 73147258680. Its totient is φ = 72941208648.

The previous prime is 73044233653. The next prime is 73044233677. The reversal of 73044233663 is 36633244037.

It is a happy number.

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 73044233663 - 2¹² = 73044229567 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 73044233663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73044233653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51511445 + ... + 51512862.

It is an arithmetic number, because the mean of its divisors is an integer number (18286814670).

Almost surely, 2^73044233663 is an apocalyptic number.

73044233663 is a deficient number, since it is larger than the sum of its proper divisors (103025017).

73044233663 is a wasteful number, since it uses less digits than its factorization.

73044233663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103025016.

The product of its (nonzero) digits is 653184, while the sum is 41.

The spelling of 73044233663 in words is "seventy-three billion, forty-four million, two hundred thirty-three thousand, six hundred sixty-three".