68444226402 has 32 divisors (see below), whose sum is σ = 141646078080. Its totient is φ = 22022219520.

The previous prime is 68444226359. The next prime is 68444226451. The reversal of 68444226402 is 20462244486.

It is a super-2 number, since 2×68444226402² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 636202 + ... + 735962.

It is an arithmetic number, because the mean of its divisors is an integer number (4426439940).

Almost surely, 2^68444226402 is an apocalyptic number.

68444226402 is an abundant number, since it is smaller than the sum of its proper divisors (73201851678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68444226402 is a wasteful number, since it uses less digits than its factorization.

68444226402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103738.

The product of its (nonzero) digits is 589824, while the sum is 42.

The spelling of 68444226402 in words is "sixty-eight billion, four hundred forty-four million, two hundred twenty-six thousand, four hundred two".