68444311 has 8 divisors (see below), whose sum is σ = 76087424. Its totient is φ = 61140960.

The previous prime is 68444303. The next prime is 68444371. The reversal of 68444311 is 11344486.

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

It is a cyclic number.

It is not a de Polignac number, because 68444311 - 2³ = 68444303 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68444371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84516 + ... + 85321.

It is an arithmetic number, because the mean of its divisors is an integer number (9510928).

Almost surely, 2^68444311 is an apocalyptic number.

68444311 is a deficient number, since it is larger than the sum of its proper divisors (7643113).

68444311 is a wasteful number, since it uses less digits than its factorization.

68444311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169881.

The product of its digits is 9216, while the sum is 31.

The square root of 68444311 is about 8273.1076990451. The cubic root of 68444311 is about 409.0525634706.

Adding to 68444311 its reverse (11344486), we get a palindrome (79788797).

The spelling of 68444311 in words is "sixty-eight million, four hundred forty-four thousand, three hundred eleven".