18858634704 has 240 divisors, whose sum is σ = 67813784640. Its totient is φ = 4973633280.

The previous prime is 18858634703. The next prime is 18858634777. The reversal of 18858634704 is 40743685881.

18858634704 is a `hidden beast` number, since 18 + 8 + 586 + 3 + 47 + 0 + 4 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18858634703) by changing a digit.

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, 240919 + ... + 309449.

It is an arithmetic number, because the mean of its divisors is an integer number (282557436).

Almost surely, 2^18858634704 is an apocalyptic number.

18858634704 is a gapful number since it is divisible by the number (14) 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 18858634704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33906892320).

18858634704 is an abundant number, since it is smaller than the sum of its proper divisors (48955149936).

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

18858634704 is a wasteful number, since it uses less digits than its factorization.

18858634704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68575 (or 68556 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The spelling of 18858634704 in words is "eighteen billion, eight hundred fifty-eight million, six hundred thirty-four thousand, seven hundred four".