68121722 has 8 divisors (see below), whose sum is σ = 106625376. Its totient is φ = 32579932.

The previous prime is 68121721. The next prime is 68121749. The reversal of 68121722 is 22712186.

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

It is a super-3 number, since 3×68121722³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (68121721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 740408 + ... + 740499.

It is an arithmetic number, because the mean of its divisors is an integer number (13328172).

Almost surely, 2^68121722 is an apocalyptic number.

68121722 is a deficient number, since it is larger than the sum of its proper divisors (38503654).

68121722 is a wasteful number, since it uses less digits than its factorization.

68121722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480932.

The product of its digits is 2688, while the sum is 29.

The square root of 68121722 is about 8253.5884317065. The cubic root of 68121722 is about 408.4089077759.

The spelling of 68121722 in words is "sixty-eight million, one hundred twenty-one thousand, seven hundred twenty-two".