128580382527 has 8 divisors (see below), whose sum is σ = 171815655216. Its totient is φ = 85532682432.

The previous prime is 128580382523. The next prime is 128580382547. The reversal of 128580382527 is 725283085821.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 128580382527 - 2² = 128580382523 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128580382527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128580382523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46891548 + ... + 46894289.

It is an arithmetic number, because the mean of its divisors is an integer number (21476956902).

Almost surely, 2^128580382527 is an apocalyptic number.

128580382527 is a deficient number, since it is larger than the sum of its proper divisors (43235272689).

128580382527 is an equidigital number, since it uses as much as digits as its factorization.

128580382527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93786297.

The product of its (nonzero) digits is 2150400, while the sum is 51.

The spelling of 128580382527 in words is "one hundred twenty-eight billion, five hundred eighty million, three hundred eighty-two thousand, five hundred twenty-seven".