129669676864 has 168 divisors, whose sum is σ = 322885112928. Its totient is φ = 51212528640.

The previous prime is 129669676859. The next prime is 129669676879. The reversal of 129669676864 is 468676966921.

It is a junction number, because it is equal to n+sod(n) for n = 129669676793 and 129669676802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28168387 + ... + 28172989.

It is an arithmetic number, because the mean of its divisors is an integer number (1921935196).

Almost surely, 2^129669676864 is an apocalyptic number.

129669676864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129669676864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161442556464).

129669676864 is an abundant number, since it is smaller than the sum of its proper divisors (193215436064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129669676864 is a wasteful number, since it uses less digits than its factorization.

129669676864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5333 (or 5316 counting only the distinct ones).

The product of its digits is 282175488, while the sum is 70.

The spelling of 129669676864 in words is "one hundred twenty-nine billion, six hundred sixty-nine million, six hundred seventy-six thousand, eight hundred sixty-four".