67933906868 has 24 divisors (see below), whose sum is σ = 120358567560. Its totient is φ = 33547737600.

The previous prime is 67933906867. The next prime is 67933906883. The reversal of 67933906868 is 86860933976.

It can be written as a sum of positive squares in 4 ways, for example, as 11309897104 + 56624009764 = 106348^2 + 237958^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67933906861) 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, 112433 + ... + 385368.

It is an arithmetic number, because the mean of its divisors is an integer number (5014940315).

Almost surely, 2^67933906868 is an apocalyptic number.

It is an amenable number.

67933906868 is a deficient number, since it is larger than the sum of its proper divisors (52424660692).

67933906868 is a wasteful number, since it uses less digits than its factorization.

67933906868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498227 (or 498225 counting only the distinct ones).

The product of its (nonzero) digits is 70543872, while the sum is 65.

The spelling of 67933906868 in words is "sixty-seven billion, nine hundred thirty-three million, nine hundred six thousand, eight hundred sixty-eight".