12387455488 has 40 divisors (see below), whose sum is σ = 24760876140. Its totient is φ = 6191185920.

The previous prime is 12387455459. The next prime is 12387455489. The reversal of 12387455488 is 88455478321.

It can be written as a sum of positive squares in 2 ways, for example, as 8326197504 + 4061257984 = 91248^2 + 63728^2 .

It is not an unprimeable number, because it can be changed into a prime (12387455489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2193148 + ... + 2198788.

Almost surely, 2^12387455488 is an apocalyptic number.

It is an amenable number.

12387455488 is a deficient number, since it is larger than the sum of its proper divisors (12373420652).

12387455488 is an frugal number, since it uses more digits than its factorization.

12387455488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9948 (or 9932 counting only the distinct ones).

The product of its digits is 8601600, while the sum is 55.

The spelling of 12387455488 in words is "twelve billion, three hundred eighty-seven million, four hundred fifty-five thousand, four hundred eighty-eight".