718212681 has 12 divisors (see below), whose sum is σ = 1070883840. Its totient is φ = 463362840.

The previous prime is 718212667. The next prime is 718212683. The reversal of 718212681 is 186212817.

718212681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 718212681 - 2¹⁰ = 718211657 is a prime.

It is a super-2 number, since 2×718212681² = 1031658910298415522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (718212683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1286841 + ... + 1287398.

It is an arithmetic number, because the mean of its divisors is an integer number (89240320).

Almost surely, 2^718212681 is an apocalyptic number.

It is an amenable number.

718212681 is a deficient number, since it is larger than the sum of its proper divisors (352671159).

718212681 is a wasteful number, since it uses less digits than its factorization.

718212681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574276 (or 2574273 counting only the distinct ones).

The product of its digits is 10752, while the sum is 36.

The square root of 718212681 is about 26799.4903123175. The cubic root of 718212681 is about 895.5386959103.

The spelling of 718212681 in words is "seven hundred eighteen million, two hundred twelve thousand, six hundred eighty-one".