128770208601 has 32 divisors (see below), whose sum is σ = 182589977088. Its totient is φ = 80443637760.

The previous prime is 128770208597. The next prime is 128770208603. The reversal of 128770208601 is 106802077821.

It is not a de Polignac number, because 128770208601 - 2² = 128770208597 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128770208603) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11992231 + ... + 12002963.

It is an arithmetic number, because the mean of its divisors is an integer number (5705936784).

Almost surely, 2^128770208601 is an apocalyptic number.

It is an amenable number.

128770208601 is a deficient number, since it is larger than the sum of its proper divisors (53819768487).

128770208601 is a wasteful number, since it uses less digits than its factorization.

128770208601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11761.

The product of its (nonzero) digits is 75264, while the sum is 42.

The spelling of 128770208601 in words is "one hundred twenty-eight billion, seven hundred seventy million, two hundred eight thousand, six hundred one".