67430066929 has 27 divisors (see below), whose sum is σ = 72497085003. Its totient is φ = 62707913424.

The previous prime is 67430066867. The next prime is 67430066941. The reversal of 67430066929 is 92966003476.

The square root of 67430066929 is 259673.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 61337952225 + 6092114704 = 247665^2 + 78052^2 .

It is not a de Polignac number, because 67430066929 - 2²³ = 67421678321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67430066729) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 389769087 + ... + 389769259.

Almost surely, 2^67430066929 is an apocalyptic number.

67430066929 is the 259673-rd square number.

67430066929 is the 129837-th centered octagonal number.

It is an amenable number.

67430066929 is a deficient number, since it is larger than the sum of its proper divisors (5067018074).

67430066929 is an frugal number, since it uses more digits than its factorization.

67430066929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 52.

The spelling of 67430066929 in words is "sixty-seven billion, four hundred thirty million, sixty-six thousand, nine hundred twenty-nine".