68129464 has 32 divisors (see below), whose sum is σ = 137970000. Its totient is φ = 31352832.

The previous prime is 68129447. The next prime is 68129491. The reversal of 68129464 is 46492186.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45967 + ... + 47425.

Almost surely, 2^68129464 is an apocalyptic number.

It is an amenable number.

68129464 is an abundant number, since it is smaller than the sum of its proper divisors (69840536).

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

68129464 is a wasteful number, since it uses less digits than its factorization.

68129464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1927 (or 1923 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 68129464 is about 8254.0574265024. The cubic root of 68129464 is about 408.4243790132.

The spelling of 68129464 in words is "sixty-eight million, one hundred twenty-nine thousand, four hundred sixty-four".