12528888065 has 8 divisors (see below), whose sum is σ = 15289490880. Its totient is φ = 9853226992.

The previous prime is 12528888061. The next prime is 12528888079. The reversal of 12528888065 is 56088882521.

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

It is a cyclic number.

It is not a de Polignac number, because 12528888065 - 2² = 12528888061 is a prime.

It is a super-2 number, since 2×12528888065² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12528887998 and 12528888016.

It is not an unprimeable number, because it can be changed into a prime (12528888061) 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, 21235109 + ... + 21235698.

It is an arithmetic number, because the mean of its divisors is an integer number (1911186360).

Almost surely, 2^12528888065 is an apocalyptic number.

It is an amenable number.

12528888065 is a deficient number, since it is larger than the sum of its proper divisors (2760602815).

12528888065 is an equidigital number, since it uses as much as digits as its factorization.

12528888065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42470871.

The product of its (nonzero) digits is 2457600, while the sum is 53.

The spelling of 12528888065 in words is "twelve billion, five hundred twenty-eight million, eight hundred eighty-eight thousand, sixty-five".