72334446648 has 32 divisors (see below), whose sum is σ = 180944566800. Its totient is φ = 24097022208.

The previous prime is 72334446637. The next prime is 72334446649. The reversal of 72334446648 is 84664443327.

It is a self number, because there is not a number n which added to its sum of digits gives 72334446648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72334446649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 862861 + ... + 942972.

Almost surely, 2^72334446648 is an apocalyptic number.

It is an amenable number.

72334446648 is an abundant number, since it is smaller than the sum of its proper divisors (108610120152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72334446648 is a wasteful number, since it uses less digits than its factorization.

72334446648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807511 (or 1807507 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 51.

The spelling of 72334446648 in words is "seventy-two billion, three hundred thirty-four million, four hundred forty-six thousand, six hundred forty-eight".