18739048680 has 320 divisors, whose sum is σ = 72328766400. Its totient is φ = 4303549440.

The previous prime is 18739048667. The next prime is 18739048723. The reversal of 18739048680 is 8684093781.

18739048680 is a `hidden beast` number, since 1 + 8 + 73 + 90 + 486 + 8 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 663324 + ... + 690996.

It is an arithmetic number, because the mean of its divisors is an integer number (226027395).

Almost surely, 2^18739048680 is an apocalyptic number.

18739048680 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 18739048680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36164383200).

18739048680 is an abundant number, since it is smaller than the sum of its proper divisors (53589717720).

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

18739048680 is a wasteful number, since it uses less digits than its factorization.

18739048680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27726 (or 27713 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 18739048680 in words is "eighteen billion, seven hundred thirty-nine million, forty-eight thousand, six hundred eighty".