12987755048 has 16 divisors (see below), whose sum is σ = 24625660500. Its totient is φ = 6420912256.

The previous prime is 12987755041. The next prime is 12987755051. The reversal of 12987755048 is 84055778921.

It can be written as a sum of positive squares in 2 ways, for example, as 12969109924 + 18645124 = 113882^2 + 4318^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12987754984 and 12987755002.

It is not an unprimeable number, because it can be changed into a prime (12987755041) 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, 9119903 + ... + 9121326.

Almost surely, 2^12987755048 is an apocalyptic number.

It is an amenable number.

12987755048 is a deficient number, since it is larger than the sum of its proper divisors (11637905452).

12987755048 is a wasteful number, since it uses less digits than its factorization.

12987755048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18241324 (or 18241320 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 56.

The spelling of 12987755048 in words is "twelve billion, nine hundred eighty-seven million, seven hundred fifty-five thousand, forty-eight".