129620652927 has 32 divisors (see below), whose sum is σ = 179075635200. Its totient is φ = 83344343040.

The previous prime is 129620652907. The next prime is 129620652943. The reversal of 129620652927 is 729256026921.

It is not a de Polignac number, because 129620652927 - 2²⁰ = 129619604351 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129620652927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129620652907) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5606802 + ... + 5629872.

It is an arithmetic number, because the mean of its divisors is an integer number (5596113600).

Almost surely, 2^129620652927 is an apocalyptic number.

129620652927 is a deficient number, since it is larger than the sum of its proper divisors (49454982273).

129620652927 is a wasteful number, since it uses less digits than its factorization.

129620652927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23663.

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 129620652927 in words is "one hundred twenty-nine billion, six hundred twenty million, six hundred fifty-two thousand, nine hundred twenty-seven".