68842230681 has 32 divisors (see below), whose sum is σ = 110455833600. Its totient is φ = 37257105600.

The previous prime is 68842230647. The next prime is 68842230713. The reversal of 68842230681 is 18603224886.

It is not a de Polignac number, because 68842230681 - 2¹⁴ = 68842214297 is a prime.

It is a super-2 number, since 2×68842230681² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68842230681.

It is not an unprimeable number, because it can be changed into a prime (68842210681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1453390 + ... + 1500008.

It is an arithmetic number, because the mean of its divisors is an integer number (3451744800).

Almost surely, 2^68842230681 is an apocalyptic number.

It is an amenable number.

68842230681 is a deficient number, since it is larger than the sum of its proper divisors (41613602919).

68842230681 is a wasteful number, since it uses less digits than its factorization.

68842230681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50349.

The product of its (nonzero) digits is 884736, while the sum is 48.

The spelling of 68842230681 in words is "sixty-eight billion, eight hundred forty-two million, two hundred thirty thousand, six hundred eighty-one".