22812475500 has 288 divisors, whose sum is σ = 74982136320. Its totient is φ = 6054782400.

The previous prime is 22812475489. The next prime is 22812475537. The reversal of 22812475500 is 557421822.

It is a happy number.

22812475500 is a `hidden beast` number, since 2 + 2 + 81 + 2 + 4 + 75 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 43618239 + ... + 43618761.

It is an arithmetic number, because the mean of its divisors is an integer number (260354640).

Almost surely, 2^22812475500 is an apocalyptic number.

22812475500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22812475500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37491068160).

22812475500 is an abundant number, since it is smaller than the sum of its proper divisors (52169660820).

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

22812475500 is a wasteful number, since it uses less digits than its factorization.

22812475500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916 (or 892 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The spelling of 22812475500 in words is "twenty-two billion, eight hundred twelve million, four hundred seventy-five thousand, five hundred".