8638126427136 has 88 divisors (see below), whose sum is σ = 23234984267440. Its totient is φ = 2852959076352.

The previous prime is 8638126427113. The next prime is 8638126427159. The reversal of 8638126427136 is 6317246218368.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8638126427113) and next prime (8638126427159).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12563731 + ... + 13233426.

It is an arithmetic number, because the mean of its divisors is an integer number (264033912130).

Almost surely, 2^{8638126427136} is an apocalyptic number.

It is an amenable number.

8638126427136 is an abundant number, since it is smaller than the sum of its proper divisors (14596857840304).

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

8638126427136 is a wasteful number, since it uses less digits than its factorization.

8638126427136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25797289 (or 25797271 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 57.

The spelling of 8638126427136 in words is "eight trillion, six hundred thirty-eight billion, one hundred twenty-six million, four hundred twenty-seven thousand, one hundred thirty-six".