72020823384 has 64 divisors (see below), whose sum is σ = 181175436000. Its totient is φ = 23857422336.

The previous prime is 72020823383. The next prime is 72020823397. The reversal of 72020823384 is 48332802027.

It is a super-2 number, since 2×72020823384² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72020823383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4684542 + ... + 4699890.

Almost surely, 2^72020823384 is an apocalyptic number.

It is an amenable number.

72020823384 is an abundant number, since it is smaller than the sum of its proper divisors (109154612616).

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

72020823384 is a wasteful number, since it uses less digits than its factorization.

72020823384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16564 (or 16560 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 39.

The spelling of 72020823384 in words is "seventy-two billion, twenty million, eight hundred twenty-three thousand, three hundred eighty-four".