128886260133545 has 8 divisors (see below), whose sum is σ = 154854690795720. Its totient is φ = 102981555683200.

The previous prime is 128886260133541. The next prime is 128886260133599. The reversal of 128886260133545 is 545331062688821.

It can be written as a sum of positive squares in 4 ways, for example, as 63383444122384 + 65502816011161 = 7961372^2 + 8093381^2 .

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

It is not a de Polignac number, because 128886260133545 - 2² = 128886260133541 is a prime.

It is a super-2 number, since 2×128886260133545² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (128886260133541) 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, 15931548506 + ... + 15931556595.

It is an arithmetic number, because the mean of its divisors is an integer number (19356836349465).

Almost surely, 2^{128886260133545} is an apocalyptic number.

It is an amenable number.

128886260133545 is a deficient number, since it is larger than the sum of its proper divisors (25968430662175).

128886260133545 is an equidigital number, since it uses as much as digits as its factorization.

128886260133545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31863105915.

The product of its (nonzero) digits is 66355200, while the sum is 62.

The spelling of 128886260133545 in words is "one hundred twenty-eight trillion, eight hundred eighty-six billion, two hundred sixty million, one hundred thirty-three thousand, five hundred forty-five".