12757421336 has 32 divisors (see below), whose sum is σ = 26099830800. Its totient is φ = 5797693440.

The previous prime is 12757421329. The next prime is 12757421419. The reversal of 12757421336 is 63312475721.

It is a happy number.

12757421336 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12757421293 and 12757421302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 577796 + ... + 599468.

Almost surely, 2^12757421336 is an apocalyptic number.

It is an amenable number.

12757421336 is an abundant number, since it is smaller than the sum of its proper divisors (13342409464).

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

12757421336 is a wasteful number, since it uses less digits than its factorization.

12757421336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28379 (or 28375 counting only the distinct ones).

The product of its digits is 211680, while the sum is 41.

The spelling of 12757421336 in words is "twelve billion, seven hundred fifty-seven million, four hundred twenty-one thousand, three hundred thirty-six".