11986746256 has 45 divisors (see below), whose sum is σ = 23543416209. Its totient is φ = 5912136000.

The previous prime is 11986746251. The next prime is 11986746259. The reversal of 11986746256 is 65264768911.

The square root of 11986746256 is 109484.

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

It can be written as a sum of positive squares in only one way, i.e., 11516723856 + 470022400 = 107316^2 + 21680^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11986746197 and 11986746206.

It is not an unprimeable number, because it can be changed into a prime (11986746251) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 44231401 + ... + 44231671.

Almost surely, 2^11986746256 is an apocalyptic number.

11986746256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

11986746256 is the 109484-th square number.

It is an amenable number.

11986746256 is a deficient number, since it is larger than the sum of its proper divisors (11556669953).

11986746256 is an frugal number, since it uses more digits than its factorization.

11986746256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752 (or 374 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 55.

The spelling of 11986746256 in words is "eleven billion, nine hundred eighty-six million, seven hundred forty-six thousand, two hundred fifty-six".