12447127116 has 180 divisors, whose sum is σ = 34758596488. Its totient is φ = 3883272192.

The previous prime is 12447127081. The next prime is 12447127123. The reversal of 12447127116 is 61172174421.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 28746036 + ... + 28746468.

Almost surely, 2^12447127116 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12447127116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17379298244).

12447127116 is an abundant number, since it is smaller than the sum of its proper divisors (22311469372).

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

12447127116 is a wasteful number, since it uses less digits than its factorization.

12447127116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790 (or 762 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The spelling of 12447127116 in words is "twelve billion, four hundred forty-seven million, one hundred twenty-seven thousand, one hundred sixteen".