12758383508 has 24 divisors (see below), whose sum is σ = 24438826440. Its totient is φ = 5791950720.

The previous prime is 12758383439. The next prime is 12758383523. The reversal of 12758383508 is 80538385721.

It can be written as a sum of positive squares in 4 ways, for example, as 121925764 + 12636457744 = 11042^2 + 112412^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2007923 + ... + 2014266.

It is an arithmetic number, because the mean of its divisors is an integer number (1018284435).

Almost surely, 2^12758383508 is an apocalyptic number.

It is an amenable number.

12758383508 is a deficient number, since it is larger than the sum of its proper divisors (11680442932).

12758383508 is a wasteful number, since it uses less digits than its factorization.

12758383508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4022267 (or 4022265 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 50.

The spelling of 12758383508 in words is "twelve billion, seven hundred fifty-eight million, three hundred eighty-three thousand, five hundred eight".