68814881422 has 32 divisors (see below), whose sum is σ = 122547769344. Its totient is φ = 28367505600.

The previous prime is 68814881393. The next prime is 68814881423. The reversal of 68814881422 is 22418841886.

It is a self number, because there is not a number n which added to its sum of digits gives 68814881422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68814881423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 803518 + ... + 885025.

It is an arithmetic number, because the mean of its divisors is an integer number (3829617792).

Almost surely, 2^68814881422 is an apocalyptic number.

68814881422 is a deficient number, since it is larger than the sum of its proper divisors (53732887922).

68814881422 is a wasteful number, since it uses less digits than its factorization.

68814881422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688664.

The product of its digits is 1572864, while the sum is 52.

The spelling of 68814881422 in words is "sixty-eight billion, eight hundred fourteen million, eight hundred eighty-one thousand, four hundred twenty-two".