129113637465 has 8 divisors (see below), whose sum is σ = 206581819968. Its totient is φ = 68860606640.

The previous prime is 129113637461. The next prime is 129113637491. The reversal of 129113637465 is 564736311921.

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

It is not a de Polignac number, because 129113637465 - 2² = 129113637461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129113637461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4303787901 + ... + 4303787930.

It is an arithmetic number, because the mean of its divisors is an integer number (25822727496).

Almost surely, 2^129113637465 is an apocalyptic number.

129113637465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

129113637465 is a deficient number, since it is larger than the sum of its proper divisors (77468182503).

129113637465 is an equidigital number, since it uses as much as digits as its factorization.

129113637465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8607575839.

The product of its digits is 816480, while the sum is 48.

The spelling of 129113637465 in words is "one hundred twenty-nine billion, one hundred thirteen million, six hundred thirty-seven thousand, four hundred sixty-five".