129882712065 has 16 divisors (see below), whose sum is σ = 207834792000. Its totient is φ = 69263295552.

The previous prime is 129882712049. The next prime is 129882712067. The reversal of 129882712065 is 560217288921.

It is not a de Polignac number, because 129882712065 - 2⁴ = 129882712049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129882711999 and 129882712017.

It is not an unprimeable number, because it can be changed into a prime (129882712067) 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, 322855 + ... + 603324.

It is an arithmetic number, because the mean of its divisors is an integer number (12989674500).

Almost surely, 2^129882712065 is an apocalyptic number.

129882712065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

129882712065 is a deficient number, since it is larger than the sum of its proper divisors (77952079935).

129882712065 is an equidigital number, since it uses as much as digits as its factorization.

129882712065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935536.

The product of its (nonzero) digits is 967680, while the sum is 51.

The spelling of 129882712065 in words is "one hundred twenty-nine billion, eight hundred eighty-two million, seven hundred twelve thousand, sixty-five".