128532525050 has 24 divisors (see below), whose sum is σ = 239701324800. Its totient is φ = 51277348080.

The previous prime is 128532525031. The next prime is 128532525059. The reversal of 128532525050 is 50525235821.

It is a junction number, because it is equal to n+sod(n) for n = 128532524995 and 128532525013.

It is not an unprimeable number, because it can be changed into a prime (128532525059) 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, 3372410 + ... + 3410309.

It is an arithmetic number, because the mean of its divisors is an integer number (9987555200).

Almost surely, 2^128532525050 is an apocalyptic number.

128532525050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128532525050 is a deficient number, since it is larger than the sum of its proper divisors (111168799750).

128532525050 is a wasteful number, since it uses less digits than its factorization.

128532525050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6783110 (or 6783105 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 38.

The spelling of 128532525050 in words is "one hundred twenty-eight billion, five hundred thirty-two million, five hundred twenty-five thousand, fifty".