12683541938 has 8 divisors (see below), whose sum is σ = 19070504940. Its totient is φ = 6326706960.

The previous prime is 12683541931. The next prime is 12683541967. The reversal of 12683541938 is 83914538621.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12450765889 + 232776049 = 111583^2 + 15257^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12683541931) 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, 7530953 + ... + 7532636.

Almost surely, 2^12683541938 is an apocalyptic number.

12683541938 is a deficient number, since it is larger than the sum of its proper divisors (6386963002).

12683541938 is a wasteful number, since it uses less digits than its factorization.

12683541938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15064012.

The product of its digits is 1244160, while the sum is 50.

The spelling of 12683541938 in words is "twelve billion, six hundred eighty-three million, five hundred forty-one thousand, nine hundred thirty-eight".