72228807900 has 216 divisors, whose sum is σ = 228561933600. Its totient is φ = 19077649920.

The previous prime is 72228807839. The next prime is 72228807949. The reversal of 72228807900 is 970882227.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 74693217 + ... + 74694183.

It is an arithmetic number, because the mean of its divisors is an integer number (1058157100).

Almost surely, 2^72228807900 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 72228807900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114280966800).

72228807900 is an abundant number, since it is smaller than the sum of its proper divisors (156333125700).

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

72228807900 is a wasteful number, since it uses less digits than its factorization.

72228807900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1693 (or 1683 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 72228807900 in words is "seventy-two billion, two hundred twenty-eight million, eight hundred seven thousand, nine hundred".