12616191828 has 24 divisors (see below), whose sum is σ = 32708645760. Its totient is φ = 4205397240.

The previous prime is 12616191823. The next prime is 12616191829. The reversal of 12616191828 is 82819161621.

It is a happy number.

12616191828 is a `hidden beast` number, since 1 + 2 + 6 + 1 + 619 + 1 + 8 + 28 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12616191823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58408188 + ... + 58408403.

It is an arithmetic number, because the mean of its divisors is an integer number (1362860240).

Almost surely, 2^12616191828 is an apocalyptic number.

12616191828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12616191828 is an abundant number, since it is smaller than the sum of its proper divisors (20092453932).

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

12616191828 is a wasteful number, since it uses less digits than its factorization.

12616191828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116816604 (or 116816596 counting only the distinct ones).

The product of its digits is 82944, while the sum is 45.

The spelling of 12616191828 in words is "twelve billion, six hundred sixteen million, one hundred ninety-one thousand, eight hundred twenty-eight".