129375870050 has 24 divisors (see below), whose sum is σ = 275016135936. Its totient is φ = 44357441040.

The previous prime is 129375870037. The next prime is 129375870059. The reversal of 129375870050 is 50078573921.

It is a junction number, because it is equal to n+sod(n) for n = 129375869977 and 129375870004.

It is not an unprimeable number, because it can be changed into a prime (129375870059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184822322 + ... + 184823021.

It is an arithmetic number, because the mean of its divisors is an integer number (11459005664).

Almost surely, 2^129375870050 is an apocalyptic number.

129375870050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129375870050 is an abundant number, since it is smaller than the sum of its proper divisors (145640265886).

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

129375870050 is a wasteful number, since it uses less digits than its factorization.

129375870050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369645362 (or 369645357 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 47.

The spelling of 129375870050 in words is "one hundred twenty-nine billion, three hundred seventy-five million, eight hundred seventy thousand, fifty".