18868053600 has 288 divisors, whose sum is σ = 74443985280. Its totient is φ = 4574016000.

The previous prime is 18868053557. The next prime is 18868053629. The reversal of 18868053600 is 635086881.

It is a tau number, because it is divible by the number of its divisors (288).

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 47 ways as a sum of consecutive naturals, for example, 197895 + ... + 277305.

It is an arithmetic number, because the mean of its divisors is an integer number (258486060).

Almost surely, 2^18868053600 is an apocalyptic number.

18868053600 is a gapful number since it is divisible by the number (10) 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 18868053600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37221992640).

18868053600 is an abundant number, since it is smaller than the sum of its proper divisors (55575931680).

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

18868053600 is a wasteful number, since it uses less digits than its factorization.

18868053600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79451 (or 79432 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 18868053600 in words is "eighteen billion, eight hundred sixty-eight million, fifty-three thousand, six hundred".