68573699376 has 80 divisors (see below), whose sum is σ = 218029211904. Its totient is φ = 18085370112.

The previous prime is 68573699333. The next prime is 68573699377. The reversal of 68573699376 is 67399637586.

It is a super-2 number, since 2×68573699376² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68573699376.

It is not an unprimeable number, because it can be changed into a prime (68573699377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7845186 + ... + 7853921.

Almost surely, 2^68573699376 is an apocalyptic number.

It is an amenable number.

68573699376 is an abundant number, since it is smaller than the sum of its proper divisors (149455512528).

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

68573699376 is a wasteful number, since it uses less digits than its factorization.

68573699376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15699138 (or 15699132 counting only the distinct ones).

The product of its digits is 308629440, while the sum is 69.

The spelling of 68573699376 in words is "sixty-eight billion, five hundred seventy-three million, six hundred ninety-nine thousand, three hundred seventy-six".