5263061866000 has 80 divisors (see below), whose sum is σ = 12732037941168. Its totient is φ = 2104239744000.

The previous prime is 5263061865979. The next prime is 5263061866019. The reversal of 5263061866000 is 6681603625.

It can be written as a sum of positive squares in 8 ways, for example, as 77622417664 + 5185439448336 = 278608^2 + 2277156^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3667444 + ... + 4896556.

Almost surely, 2^{5263061866000} is an apocalyptic number.

5263061866000 is a gapful number since it is divisible by the number (50) 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 5263061866000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6366018970584).

5263061866000 is an abundant number, since it is smaller than the sum of its proper divisors (7468976075168).

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

5263061866000 is a wasteful number, since it uses less digits than its factorization.

5263061866000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231277 (or 1231261 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 5263061866000 in words is "five trillion, two hundred sixty-three billion, sixty-one million, eight hundred sixty-six thousand".