129533139864 has 48 divisors (see below), whose sum is σ = 360300520320. Its totient is φ = 42010747200.

The previous prime is 129533139847. The next prime is 129533139919. The reversal of 129533139864 is 468931335921.

129533139864 is a `hidden beast` number, since 1 + 2 + 9 + 533 + 13 + 98 + 6 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 129533139864.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 24309112 + ... + 24314439.

It is an arithmetic number, because the mean of its divisors is an integer number (7506260840).

Almost surely, 2^129533139864 is an apocalyptic number.

It is an amenable number.

129533139864 is an abundant number, since it is smaller than the sum of its proper divisors (230767380456).

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

129533139864 is a wasteful number, since it uses less digits than its factorization.

129533139864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48623600 (or 48623593 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 54.

The spelling of 129533139864 in words is "one hundred twenty-nine billion, five hundred thirty-three million, one hundred thirty-nine thousand, eight hundred sixty-four".