73229823912 has 64 divisors (see below), whose sum is σ = 209456179200. Its totient is φ = 20899995840.

The previous prime is 73229823911. The next prime is 73229823977. The reversal of 73229823912 is 21932892237.

It is a happy number.

It is a super-2 number, since 2×73229823912² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (73229823911) 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, 82764 + ... + 391547.

It is an arithmetic number, because the mean of its divisors is an integer number (3272752800).

Almost surely, 2^73229823912 is an apocalyptic number.

It is an amenable number.

73229823912 is an abundant number, since it is smaller than the sum of its proper divisors (136226355288).

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

73229823912 is a wasteful number, since it uses less digits than its factorization.

73229823912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475246 (or 475242 counting only the distinct ones).

The product of its digits is 653184, while the sum is 48.

The spelling of 73229823912 in words is "seventy-three billion, two hundred twenty-nine million, eight hundred twenty-three thousand, nine hundred twelve".