12627556458 has 64 divisors (see below), whose sum is σ = 28196646912. Its totient is φ = 3737209280.

The previous prime is 12627556423. The next prime is 12627556483. The reversal of 12627556458 is 85465572621.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12627556458.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1556260 + ... + 1564352.

It is an arithmetic number, because the mean of its divisors is an integer number (440572608).

Almost surely, 2^12627556458 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12627556458, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14098323456).

12627556458 is an abundant number, since it is smaller than the sum of its proper divisors (15569090454).

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

12627556458 is a wasteful number, since it uses less digits than its factorization.

12627556458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8659.

The product of its digits is 4032000, while the sum is 51.

The spelling of 12627556458 in words is "twelve billion, six hundred twenty-seven million, five hundred fifty-six thousand, four hundred fifty-eight".