912863682721 has 3 divisors (see below), whose sum is σ = 912864638161. Its totient is φ = 912862727282.

The previous prime is 912863682691. The next prime is 912863682727. The reversal of 912863682721 is 127286368219.

The square root of 912863682721 is 955439.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 912863682721 - 2⁷ = 912863682593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (912863682727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 477720 + ... + 1433158.

Almost surely, 2^912863682721 is an apocalyptic number.

912863682721 is the 955439-th square number.

912863682721 is the 477720-th centered octagonal number.

It is an amenable number.

912863682721 is a deficient number, since it is larger than the sum of its proper divisors (955440).

912863682721 is an frugal number, since it uses more digits than its factorization.

912863682721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910878 (or 955439 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 55.

The spelling of 912863682721 in words is "nine hundred twelve billion, eight hundred sixty-three million, six hundred eighty-two thousand, seven hundred twenty-one".