18870234768 has 240 divisors, whose sum is σ = 68736582720. Its totient is φ = 4901299200.

The previous prime is 18870234763. The next prime is 18870234797. The reversal of 18870234768 is 86743207881.

It is a happy number.

18870234768 is a `hidden beast` number, since 1 + 88 + 70 + 23 + 476 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (18870234763) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 192328 + ... + 273368.

It is an arithmetic number, because the mean of its divisors is an integer number (286402428).

Almost surely, 2^18870234768 is an apocalyptic number.

18870234768 is a gapful number since it is divisible by the number (18) 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 18870234768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34368291360).

18870234768 is an abundant number, since it is smaller than the sum of its proper divisors (49866347952).

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

18870234768 is a wasteful number, since it uses less digits than its factorization.

18870234768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81083 (or 81064 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 54.

The spelling of 18870234768 in words is "eighteen billion, eight hundred seventy million, two hundred thirty-four thousand, seven hundred sixty-eight".