612266681 has 8 divisors (see below), whose sum is σ = 667309440. Its totient is φ = 558358992.

The previous prime is 612266671. The next prime is 612266717. The reversal of 612266681 is 186662216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-612266681 is a prime.

It is a super-2 number, since 2×612266681² = 749740977325511522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612266671) 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 7 ways as a sum of consecutive naturals, for example, 282641 + ... + 284798.

It is an arithmetic number, because the mean of its divisors is an integer number (83413680).

Almost surely, 2^612266681 is an apocalyptic number.

It is an amenable number.

612266681 is a deficient number, since it is larger than the sum of its proper divisors (55042759).

612266681 is a wasteful number, since it uses less digits than its factorization.

612266681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567535.

The product of its digits is 41472, while the sum is 38.

The square root of 612266681 is about 24744.0231369113. The cubic root of 612266681 is about 849.1417778277.

The spelling of 612266681 in words is "six hundred twelve million, two hundred sixty-six thousand, six hundred eighty-one".