18863107830 has 96 divisors (see below), whose sum is σ = 56341157184. Its totient is φ = 4289200128.

The previous prime is 18863107733. The next prime is 18863107853. The reversal of 18863107830 is 3870136881.

18863107830 is a `hidden beast` number, since 1 + 8 + 8 + 631 + 0 + 7 + 8 + 3 + 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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44022 + ... + 199158.

It is an arithmetic number, because the mean of its divisors is an integer number (586887054).

Almost surely, 2^18863107830 is an apocalyptic number.

18863107830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18863107830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28170578592).

18863107830 is an abundant number, since it is smaller than the sum of its proper divisors (37478049354).

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

18863107830 is a wasteful number, since it uses less digits than its factorization.

18863107830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155350 (or 155347 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 18863107830 in words is "eighteen billion, eight hundred sixty-three million, one hundred seven thousand, eight hundred thirty".