12427561026 has 32 divisors (see below), whose sum is σ = 27995123520. Its totient is φ = 4085772192.

The previous prime is 12427561019. The next prime is 12427561039. The reversal of 12427561026 is 62016572421.

It is a happy number.

12427561026 is a `hidden beast` number, since 12 + 4 + 2 + 7 + 5 + 610 + 26 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1572360 + ... + 1580243.

It is an arithmetic number, because the mean of its divisors is an integer number (874847610).

Almost surely, 2^12427561026 is an apocalyptic number.

12427561026 is an abundant number, since it is smaller than the sum of its proper divisors (15567562494).

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

12427561026 is a wasteful number, since it uses less digits than its factorization.

12427561026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3152687 (or 3152681 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 12427561026 in words is "twelve billion, four hundred twenty-seven million, five hundred sixty-one thousand, twenty-six".