129000327412957 has 16 divisors (see below), whose sum is σ = 173203236807552. Its totient is φ = 92787448288320.

The previous prime is 129000327412921. The next prime is 129000327412961. The reversal of 129000327412957 is 759214723000921.

It is a cyclic number.

It is not a de Polignac number, because 129000327412957 - 2²⁷ = 129000193195229 is a prime.

It is a super-2 number, since 2×129000327412957² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129000327412907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64435726978 + ... + 64435728979.

It is an arithmetic number, because the mean of its divisors is an integer number (10825202300472).

Almost surely, 2^{129000327412957} is an apocalyptic number.

It is an amenable number.

129000327412957 is a deficient number, since it is larger than the sum of its proper divisors (44202909394595).

129000327412957 is a wasteful number, since it uses less digits than its factorization.

129000327412957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128871455988.

The product of its (nonzero) digits is 1905120, while the sum is 52.

The spelling of 129000327412957 in words is "one hundred twenty-nine trillion, three hundred twenty-seven million, four hundred twelve thousand, nine hundred fifty-seven".