72334897056 has 144 divisors (see below), whose sum is σ = 212828878080. Its totient is φ = 23279892480.

The previous prime is 72334897039. The next prime is 72334897067. The reversal of 72334897056 is 65079843327.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 72334896993 and 72334897011.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3945960 + ... + 3964248.

It is an arithmetic number, because the mean of its divisors is an integer number (1477978320).

Almost surely, 2^72334897056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72334897056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106414439040).

72334897056 is an abundant number, since it is smaller than the sum of its proper divisors (140493981024).

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

72334897056 is a wasteful number, since it uses less digits than its factorization.

72334897056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18779 (or 18768 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 54.

The spelling of 72334897056 in words is "seventy-two billion, three hundred thirty-four million, eight hundred ninety-seven thousand, fifty-six".