12467731668 has 24 divisors (see below), whose sum is σ = 33247284672. Its totient is φ = 3562209024.

The previous prime is 12467731663. The next prime is 12467731669. The reversal of 12467731668 is 86613776421.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12467731668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12467731663) 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, 74212605 + ... + 74212772.

It is an arithmetic number, because the mean of its divisors is an integer number (1385303528).

Almost surely, 2^12467731668 is an apocalyptic number.

It is an amenable number.

12467731668 is an abundant number, since it is smaller than the sum of its proper divisors (20779553004).

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

12467731668 is a wasteful number, since it uses less digits than its factorization.

12467731668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148425391 (or 148425389 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 51.

The spelling of 12467731668 in words is "twelve billion, four hundred sixty-seven million, seven hundred thirty-one thousand, six hundred sixty-eight".