129552787567 has 64 divisors (see below), whose sum is σ = 158364057600. Its totient is φ = 103669632000.

The previous prime is 129552787531. The next prime is 129552787571. The reversal of 129552787567 is 765787255921.

It is not a de Polignac number, because 129552787567 - 2³¹ = 127405303919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129552787499 and 129552787508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129552787667) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 213430978 + ... + 213431584.

It is an arithmetic number, because the mean of its divisors is an integer number (2474438400).

Almost surely, 2^129552787567 is an apocalyptic number.

129552787567 is a deficient number, since it is larger than the sum of its proper divisors (28811270033).

129552787567 is a wasteful number, since it uses less digits than its factorization.

129552787567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992.

The product of its digits is 74088000, while the sum is 64.

The spelling of 129552787567 in words is "one hundred twenty-nine billion, five hundred fifty-two million, seven hundred eighty-seven thousand, five hundred sixty-seven".