129746534632 has 64 divisors (see below), whose sum is σ = 302617425600. Its totient is φ = 51236797440.

The previous prime is 129746534629. The next prime is 129746534633. The reversal of 129746534632 is 236435647921.

It is a super-3 number, since 3×129746534632³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a self number, because there is not a number n which added to its sum of digits gives 129746534632.

It is not an unprimeable number, because it can be changed into a prime (129746534633) 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 15 ways as a sum of consecutive naturals, for example, 3316282 + ... + 3355177.

It is an arithmetic number, because the mean of its divisors is an integer number (4728397275).

Almost surely, 2^129746534632 is an apocalyptic number.

It is an amenable number.

129746534632 is an abundant number, since it is smaller than the sum of its proper divisors (172870890968).

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

129746534632 is a wasteful number, since it uses less digits than its factorization.

129746534632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6671506 (or 6671502 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 52.

The spelling of 129746534632 in words is "one hundred twenty-nine billion, seven hundred forty-six million, five hundred thirty-four thousand, six hundred thirty-two".