17873684712 has 288 divisors, whose sum is σ = 55522139400. Its totient is φ = 5193497088.

The previous prime is 17873684711. The next prime is 17873684729. The reversal of 17873684712 is 21748637871.

It can be written as a sum of positive squares in 4 ways, for example, as 416404836 + 17457279876 = 20406^2 + 132126^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17873684711) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 57104268 + ... + 57104580.

Almost surely, 2^17873684712 is an apocalyptic number.

17873684712 is a gapful number since it is divisible by the number (12) 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 17873684712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27761069700).

17873684712 is an abundant number, since it is smaller than the sum of its proper divisors (37648454688).

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

17873684712 is a wasteful number, since it uses less digits than its factorization.

17873684712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402 (or 350 counting only the distinct ones).

The product of its digits is 3161088, while the sum is 54.

The spelling of 17873684712 in words is "seventeen billion, eight hundred seventy-three million, six hundred eighty-four thousand, seven hundred twelve".