11863863804816 has 135 divisors (see below), whose sum is σ = 35044125671451. Its totient is φ = 3746235310272.

The previous prime is 11863863804811. The next prime is 11863863804823. The reversal of 11863863804816 is 61840836836811.

The square root of 11863863804816 is 3444396.

It is a perfect power (a square), and thus also a powerful number.

11863863804816 is a `hidden beast` number, since 1 + 18 + 6 + 3 + 8 + 63 + 80 + 481 + 6 = 666.

It is a super-2 number, since 2×11863863804816² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11863863804811) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 785314735 + ... + 785329841.

Almost surely, 2^{11863863804816} is an apocalyptic number.

11863863804816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

11863863804816 is the 3444396-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11863863804816

11863863804816 is an abundant number, since it is smaller than the sum of its proper divisors (23180261866635).

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

11863863804816 is an frugal number, since it uses more digits than its factorization.

11863863804816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30266 (or 15131 counting only the distinct ones).

The product of its (nonzero) digits is 31850496, while the sum is 63.

The spelling of 11863863804816 in words is "eleven trillion, eight hundred sixty-three billion, eight hundred sixty-three million, eight hundred four thousand, eight hundred sixteen".