12402907138 has 8 divisors (see below), whose sum is σ = 18606949632. Its totient is φ = 6200590596.

The previous prime is 12402907093. The next prime is 12402907147. The reversal of 12402907138 is 83170920421.

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

It is a junction number, because it is equal to n+sod(n) for n = 12402907097 and 12402907106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413370 + ... + 442357.

It is an arithmetic number, because the mean of its divisors is an integer number (2325868704).

Almost surely, 2^12402907138 is an apocalyptic number.

12402907138 is a deficient number, since it is larger than the sum of its proper divisors (6204042494).

12402907138 is an equidigital number, since it uses as much as digits as its factorization.

12402907138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862976.

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 12402907138 in words is "twelve billion, four hundred two million, nine hundred seven thousand, one hundred thirty-eight".