128559896050 has 24 divisors (see below), whose sum is σ = 239131141056. Its totient is φ = 51421865040.

The previous prime is 128559896029. The next prime is 128559896053. The reversal of 128559896050 is 50698955821.

It is not an unprimeable number, because it can be changed into a prime (128559896053) 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, 1936507 + ... + 2001793.

It is an arithmetic number, because the mean of its divisors is an integer number (9963797544).

Almost surely, 2^128559896050 is an apocalyptic number.

128559896050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128559896050 is a deficient number, since it is larger than the sum of its proper divisors (110571245006).

128559896050 is a wasteful number, since it uses less digits than its factorization.

128559896050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104682 (or 104677 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 58.

The spelling of 128559896050 in words is "one hundred twenty-eight billion, five hundred fifty-nine million, eight hundred ninety-six thousand, fifty".