12381738898 has 8 divisors (see below), whose sum is σ = 18574064460. Its totient is φ = 6190384080.

The previous prime is 12381738893. The next prime is 12381738899. The reversal of 12381738898 is 89883718321.

It can be written as a sum of positive squares in 2 ways, for example, as 10416855969 + 1964882929 = 102063^2 + 44327^2 .

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 (12381738893) 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, 209913 + ... + 262348.

Almost surely, 2^12381738898 is an apocalyptic number.

12381738898 is a deficient number, since it is larger than the sum of its proper divisors (6192325562).

12381738898 is a wasteful number, since it uses less digits than its factorization.

12381738898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485372.

The product of its digits is 4644864, while the sum is 58.

The spelling of 12381738898 in words is "twelve billion, three hundred eighty-one million, seven hundred thirty-eight thousand, eight hundred ninety-eight".