12487368428 has 24 divisors (see below), whose sum is σ = 23763724992. Its totient is φ = 5717585664.

The previous prime is 12487368427. The next prime is 12487368433. The reversal of 12487368428 is 82486378421.

It is a super-2 number, since 2×12487368428² (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 12487368428.

It is not an unprimeable number, because it can be changed into a prime (12487368427) 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, 2479076 + ... + 2484107.

It is an arithmetic number, because the mean of its divisors is an integer number (990155208).

Almost surely, 2^12487368428 is an apocalyptic number.

It is an amenable number.

12487368428 is a deficient number, since it is larger than the sum of its proper divisors (11276356564).

12487368428 is a wasteful number, since it uses less digits than its factorization.

12487368428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4963241 (or 4963239 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 53.

The spelling of 12487368428 in words is "twelve billion, four hundred eighty-seven million, three hundred sixty-eight thousand, four hundred twenty-eight".