12136787622 has 48 divisors (see below), whose sum is σ = 27277698240. Its totient is φ = 3895387776.

The previous prime is 12136787609. The next prime is 12136787647. The reversal of 12136787622 is 22678763121.

12136787622 is a `hidden beast` number, since 1 + 2 + 13 + 6 + 7 + 8 + 7 + 622 = 666.

It is a super-2 number, since 2×12136787622² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 159898 + ... + 223250.

It is an arithmetic number, because the mean of its divisors is an integer number (568285380).

Almost surely, 2^12136787622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12136787622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13638849120).

12136787622 is an abundant number, since it is smaller than the sum of its proper divisors (15140910618).

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

12136787622 is a wasteful number, since it uses less digits than its factorization.

12136787622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63757 (or 63754 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The spelling of 12136787622 in words is "twelve billion, one hundred thirty-six million, seven hundred eighty-seven thousand, six hundred twenty-two".