12565275078 has 8 divisors (see below), whose sum is σ = 25130550168. Its totient is φ = 4188425024.

The previous prime is 12565275071. The next prime is 12565275083. The reversal of 12565275078 is 87057256521.

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

12565275078 is an admirable number.

It is a super-2 number, since 2×12565275078² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12565275071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1047106251 + ... + 1047106262.

It is an arithmetic number, because the mean of its divisors is an integer number (3141318771).

Almost surely, 2^12565275078 is an apocalyptic number.

12565275078 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12565275078 is a wasteful number, since it uses less digits than its factorization.

12565275078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094212518.

The product of its (nonzero) digits is 1176000, while the sum is 48.

The spelling of 12565275078 in words is "twelve billion, five hundred sixty-five million, two hundred seventy-five thousand, seventy-eight".