128180260624 has 20 divisors (see below), whose sum is σ = 267453044236. Its totient is φ = 59160120192.

The previous prime is 128180260597. The next prime is 128180260679. The reversal of 128180260624 is 426062081821.

It is a happy number.

128180260624 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 69358489600 + 58821771024 = 263360^2 + 242532^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308125419 + ... + 308125834.

Almost surely, 2^128180260624 is an apocalyptic number.

It is an amenable number.

128180260624 is an abundant number, since it is smaller than the sum of its proper divisors (139272783612).

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

128180260624 is a wasteful number, since it uses less digits than its factorization.

128180260624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616251274 (or 616251268 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The spelling of 128180260624 in words is "one hundred twenty-eight billion, one hundred eighty million, two hundred sixty thousand, six hundred twenty-four".