12398491108 has 12 divisors (see below), whose sum is σ = 21698255740. Its totient is φ = 6198989472.

The previous prime is 12398491099. The next prime is 12398491111. The reversal of 12398491108 is 80119489321.

12398491108 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4826358784 + 7572132324 = 69472^2 + 87018^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 81838 + ... + 177466.

Almost surely, 2^12398491108 is an apocalyptic number.

It is an amenable number.

12398491108 is a deficient number, since it is larger than the sum of its proper divisors (9299764632).

12398491108 is a wasteful number, since it uses less digits than its factorization.

12398491108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128046 (or 128044 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 46.

It can be divided in two parts, 12398 and 491108, that added together give a triangular number (503506 = T₁₀₀₃).

The spelling of 12398491108 in words is "twelve billion, three hundred ninety-eight million, four hundred ninety-one thousand, one hundred eight".