12438897092 has 12 divisors (see below), whose sum is σ = 21880859196. Its totient is φ = 6187223040.

The previous prime is 12438897089. The next prime is 12438897101. The reversal of 12438897092 is 29079883421.

It can be written as a sum of positive squares in 2 ways, for example, as 1748577856 + 10690319236 = 41816^2 + 103394^2 .

It is a super-3 number, since 3×12438897092³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8055509 + ... + 8057052.

It is an arithmetic number, because the mean of its divisors is an integer number (1823404933).

Almost surely, 2^12438897092 is an apocalyptic number.

It is an amenable number.

12438897092 is a deficient number, since it is larger than the sum of its proper divisors (9441962104).

12438897092 is a wasteful number, since it uses less digits than its factorization.

12438897092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16112758 (or 16112756 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 12438897092 in words is "twelve billion, four hundred thirty-eight million, eight hundred ninety-seven thousand, ninety-two".