12578887626 has 32 divisors (see below), whose sum is σ = 25354366848. Its totient is φ = 4160229120.

The previous prime is 12578887613. The next prime is 12578887627. The reversal of 12578887626 is 62678887521.

It is a self number, because there is not a number n which added to its sum of digits gives 12578887626.

It is not an unprimeable number, because it can be changed into a prime (12578887627) 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 15 ways as a sum of consecutive naturals, for example, 3188211 + ... + 3192153.

It is an arithmetic number, because the mean of its divisors is an integer number (792323964).

Almost surely, 2^12578887626 is an apocalyptic number.

12578887626 is an abundant number, since it is smaller than the sum of its proper divisors (12775479222).

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

12578887626 is a wasteful number, since it uses less digits than its factorization.

12578887626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7966.

The product of its digits is 18063360, while the sum is 60.

The spelling of 12578887626 in words is "twelve billion, five hundred seventy-eight million, eight hundred eighty-seven thousand, six hundred twenty-six".