12467285648 has 40 divisors (see below), whose sum is σ = 25607881080. Its totient is φ = 5859706880.

The previous prime is 12467285641. The next prime is 12467285653. The reversal of 12467285648 is 84658276421.

It is a Cunningham number, because it is equal to 111657²-1.

It can be written as a sum of positive squares in 4 ways, for example, as 1781515264 + 10685770384 = 42208^2 + 103372^2 .

It is a super-2 number, since 2×12467285648² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12467285648.

It is not an unprimeable number, because it can be changed into a prime (12467285641) 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, 195398 + ... + 251226.

It is an arithmetic number, because the mean of its divisors is an integer number (640197027).

Almost surely, 2^12467285648 is an apocalyptic number.

It is an amenable number.

12467285648 is an abundant number, since it is smaller than the sum of its proper divisors (13140595432).

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

12467285648 is a wasteful number, since it uses less digits than its factorization.

12467285648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56675 (or 56669 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 53.

The spelling of 12467285648 in words is "twelve billion, four hundred sixty-seven million, two hundred eighty-five thousand, six hundred forty-eight".