129012663764 has 12 divisors (see below), whose sum is σ = 225819636000. Its totient is φ = 64492767768.

The previous prime is 129012663763. The next prime is 129012663797. The reversal of 129012663764 is 467366210921.

It is a super-2 number, since 2×129012663764² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129012663763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3369614 + ... + 3407685.

It is an arithmetic number, because the mean of its divisors is an integer number (18818303000).

Almost surely, 2^129012663764 is an apocalyptic number.

It is an amenable number.

129012663764 is a deficient number, since it is larger than the sum of its proper divisors (96806972236).

129012663764 is a wasteful number, since it uses less digits than its factorization.

129012663764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6782062 (or 6782060 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 129012663764 in words is "one hundred twenty-nine billion, twelve million, six hundred sixty-three thousand, seven hundred sixty-four".