129288881252848 has 20 divisors (see below), whose sum is σ = 250564964428000. Its totient is φ = 64626954948864.

The previous prime is 129288881252809. The next prime is 129288881252851. The reversal of 129288881252848 is 848252188882921.

It is a super-2 number, since 2×129288881252848² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1092793848 + ... + 1092912151.

It is an arithmetic number, because the mean of its divisors is an integer number (12528248221400).

Almost surely, 2^{129288881252848} is an apocalyptic number.

It is an amenable number.

129288881252848 is a deficient number, since it is larger than the sum of its proper divisors (121276083175152).

129288881252848 is a wasteful number, since it uses less digits than its factorization.

129288881252848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2185709704 (or 2185709698 counting only the distinct ones).

The product of its digits is 754974720, while the sum is 76.

The spelling of 129288881252848 in words is "one hundred twenty-nine trillion, two hundred eighty-eight billion, eight hundred eighty-one million, two hundred fifty-two thousand, eight hundred forty-eight".