68426442936 has 24 divisors (see below), whose sum is σ = 185321616480. Its totient is φ = 22808814288.

The previous prime is 68426442911. The next prime is 68426442947. The reversal of 68426442936 is 63924462486.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 475183560 + ... + 475183703.

It is an arithmetic number, because the mean of its divisors is an integer number (7721734020).

Almost surely, 2^68426442936 is an apocalyptic number.

It is an amenable number.

68426442936 is an abundant number, since it is smaller than the sum of its proper divisors (116895173544).

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

68426442936 is a wasteful number, since it uses less digits than its factorization.

68426442936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950367275 (or 950367268 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 54.

The spelling of 68426442936 in words is "sixty-eight billion, four hundred twenty-six million, four hundred forty-two thousand, nine hundred thirty-six".