72989546663 has 8 divisors (see below), whose sum is σ = 79632786960. Its totient is φ = 66347610880.

The previous prime is 72989546659. The next prime is 72989546677. The reversal of 72989546663 is 36664598927.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72989546663 - 2² = 72989546659 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 72989546663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72989546683) 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 7 ways as a sum of consecutive naturals, for example, 207248 + ... + 434661.

It is an arithmetic number, because the mean of its divisors is an integer number (9954098370).

Almost surely, 2^72989546663 is an apocalyptic number.

72989546663 is a deficient number, since it is larger than the sum of its proper divisors (6643240297).

72989546663 is a wasteful number, since it uses less digits than its factorization.

72989546663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652257.

The product of its digits is 117573120, while the sum is 65.

The spelling of 72989546663 in words is "seventy-two billion, nine hundred eighty-nine million, five hundred forty-six thousand, six hundred sixty-three".