12417186644 has 6 divisors (see below), whose sum is σ = 21730076634. Its totient is φ = 6208593320.

The previous prime is 12417186623. The next prime is 12417186647. The reversal of 12417186644 is 44668171421.

It can be written as a sum of positive squares in only one way, i.e., 9978012100 + 2439174544 = 99890^2 + 49388^2 .

It is a super-3 number, since 3×12417186644³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12417186595 and 12417186604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12417186647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1552148327 + ... + 1552148334.

It is an arithmetic number, because the mean of its divisors is an integer number (3621679439).

Almost surely, 2^12417186644 is an apocalyptic number.

It is an amenable number.

12417186644 is a deficient number, since it is larger than the sum of its proper divisors (9312889990).

12417186644 is a wasteful number, since it uses less digits than its factorization.

12417186644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3104296665 (or 3104296663 counting only the distinct ones).

The product of its digits is 258048, while the sum is 44.

The spelling of 12417186644 in words is "twelve billion, four hundred seventeen million, one hundred eighty-six thousand, six hundred forty-four".