23538778200 has 288 divisors, whose sum is σ = 93691503360. Its totient is φ = 5380214400.

The previous prime is 23538778199. The next prime is 23538778247. The reversal of 23538778200 is 287783532.

23538778200 is a `hidden beast` number, since 23 + 538 + 7 + 78 + 20 + 0 = 666.

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, 305605 + ... + 374795.

It is an arithmetic number, because the mean of its divisors is an integer number (325317720).

Almost surely, 2^23538778200 is an apocalyptic number.

23538778200 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 23538778200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46845751680).

23538778200 is an abundant number, since it is smaller than the sum of its proper divisors (70152725160).

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

23538778200 is a wasteful number, since it uses less digits than its factorization.

23538778200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69229 (or 69208 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 23538778200 in words is "twenty-three billion, five hundred thirty-eight million, seven hundred seventy-eight thousand, two hundred".