129145752908 has 24 divisors (see below), whose sum is σ = 226280820864. Its totient is φ = 64494144000.

The previous prime is 129145752877. The next prime is 129145752913. The reversal of 129145752908 is 809257541921.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 129145752908.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13038758 + ... + 13048658.

It is an arithmetic number, because the mean of its divisors is an integer number (9428367536).

Almost surely, 2^129145752908 is an apocalyptic number.

It is an amenable number.

129145752908 is a deficient number, since it is larger than the sum of its proper divisors (97135067956).

129145752908 is a wasteful number, since it uses less digits than its factorization.

129145752908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13553 (or 13551 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 53.

The spelling of 129145752908 in words is "one hundred twenty-nine billion, one hundred forty-five million, seven hundred fifty-two thousand, nine hundred eight".