12619129266 has 64 divisors (see below), whose sum is σ = 29296189440. Its totient is φ = 4021598160.

The previous prime is 12619129247. The next prime is 12619129283. The reversal of 12619129266 is 66292191621.

12619129266 is a `hidden beast` number, since 1 + 2 + 619 + 1 + 2 + 9 + 26 + 6 = 666.

It is a nude number because it is divisible by every one of its digits.

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, 93531 + ... + 184353.

It is an arithmetic number, because the mean of its divisors is an integer number (457752960).

Almost surely, 2^12619129266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12619129266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14648094720).

12619129266 is an abundant number, since it is smaller than the sum of its proper divisors (16677060174).

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

12619129266 is a wasteful number, since it uses less digits than its factorization.

12619129266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90948 (or 90942 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The spelling of 12619129266 in words is "twelve billion, six hundred nineteen million, one hundred twenty-nine thousand, two hundred sixty-six".