129268324194776 has 32 divisors (see below), whose sum is σ = 272371385432160. Its totient is φ = 57068290278912.

The previous prime is 129268324194727. The next prime is 129268324194803. The reversal of 129268324194776 is 677491423862921.

It is a congruent number.

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, 27020968385 + ... + 27020973168.

It is an arithmetic number, because the mean of its divisors is an integer number (8511605794755).

Almost surely, 2^{129268324194776} is an apocalyptic number.

It is an amenable number.

129268324194776 is an abundant number, since it is smaller than the sum of its proper divisors (143103061237384).

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

129268324194776 is a wasteful number, since it uses less digits than its factorization.

129268324194776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54041941595 (or 54041941591 counting only the distinct ones).

The product of its digits is 438939648, while the sum is 71.

The spelling of 129268324194776 in words is "one hundred twenty-nine trillion, two hundred sixty-eight billion, three hundred twenty-four million, one hundred ninety-four thousand, seven hundred seventy-six".