129587640271 has 8 divisors (see below), whose sum is σ = 129906143744. Its totient is φ = 129269429280.

The previous prime is 129587640257. The next prime is 129587640289. The reversal of 129587640271 is 172046785921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129587640271 - 2²⁵ = 129554085839 is a prime.

It is a super-2 number, since 2×129587640271² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129587640241) 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, 827665 + ... + 971701.

It is an arithmetic number, because the mean of its divisors is an integer number (16238267968).

Almost surely, 2^129587640271 is an apocalyptic number.

129587640271 is a deficient number, since it is larger than the sum of its proper divisors (318503473).

129587640271 is a wasteful number, since it uses less digits than its factorization.

129587640271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146241.

The product of its (nonzero) digits is 1693440, while the sum is 52.

The spelling of 129587640271 in words is "one hundred twenty-nine billion, five hundred eighty-seven million, six hundred forty thousand, two hundred seventy-one".