18715842949230 has 1024 divisors, whose sum is σ = 64015781068800. Its totient is φ = 3792438558720.

The previous prime is 18715842949207. The next prime is 18715842949249. The reversal of 18715842949230 is 3294924851781.

18715842949230 is a `hidden beast` number, since 1 + 8 + 7 + 1 + 584 + 2 + 9 + 49 + 2 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 16232300334 + ... + 16232301486.

It is an arithmetic number, because the mean of its divisors is an integer number (62515411200).

Almost surely, 2^{18715842949230} is an apocalyptic number.

18715842949230 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 18715842949230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32007890534400).

18715842949230 is an abundant number, since it is smaller than the sum of its proper divisors (45299938119570).

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

18715842949230 is a wasteful number, since it uses less digits than its factorization.

18715842949230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646 (or 1640 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 63.

The spelling of 18715842949230 in words is "eighteen trillion, seven hundred fifteen billion, eight hundred forty-two million, nine hundred forty-nine thousand, two hundred thirty".