68064475982 has 4 divisors (see below), whose sum is σ = 102096713976. Its totient is φ = 34032237990.

The previous prime is 68064475981. The next prime is 68064475993. The reversal of 68064475982 is 28957446086.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68064475981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17016118994 + ... + 17016118997.

It is an arithmetic number, because the mean of its divisors is an integer number (25524178494).

Almost surely, 2^68064475982 is an apocalyptic number.

68064475982 is a deficient number, since it is larger than the sum of its proper divisors (34032237994).

68064475982 is a wasteful number, since it uses less digits than its factorization.

68064475982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34032237993.

The product of its (nonzero) digits is 23224320, while the sum is 59.

The spelling of 68064475982 in words is "sixty-eight billion, sixty-four million, four hundred seventy-five thousand, nine hundred eighty-two".