72849516788 has 6 divisors (see below), whose sum is σ = 127486654386. Its totient is φ = 36424758392.

The previous prime is 72849516769. The next prime is 72849516797. The reversal of 72849516788 is 88761594827.

It can be written as a sum of positive squares in only one way, i.e., 68372836324 + 4476680464 = 261482^2 + 66908^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 9106189595 + ... + 9106189602.

It is an arithmetic number, because the mean of its divisors is an integer number (21247775731).

Almost surely, 2^72849516788 is an apocalyptic number.

It is an amenable number.

72849516788 is a deficient number, since it is larger than the sum of its proper divisors (54637137598).

72849516788 is a wasteful number, since it uses less digits than its factorization.

72849516788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18212379201 (or 18212379199 counting only the distinct ones).

The product of its digits is 54190080, while the sum is 65.

The spelling of 72849516788 in words is "seventy-two billion, eight hundred forty-nine million, five hundred sixteen thousand, seven hundred eighty-eight".