23412836138 has 8 divisors (see below), whose sum is σ = 35131641732. Its totient is φ = 11702288896.

The previous prime is 23412836137. The next prime is 23412836141. The reversal of 23412836138 is 83163821432.

It can be written as a sum of positive squares in 2 ways, for example, as 19331287369 + 4081548769 = 139037^2 + 63887^2 .

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 = 23412836095 and 23412836104.

It is not an unprimeable number, because it can be changed into a prime (23412836137) by changing a digit.

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, 2057495 + ... + 2068842.

Almost surely, 2^23412836138 is an apocalyptic number.

23412836138 is a deficient number, since it is larger than the sum of its proper divisors (11718805594).

23412836138 is a wasteful number, since it uses less digits than its factorization.

23412836138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4129176.

The product of its digits is 165888, while the sum is 41.

The spelling of 23412836138 in words is "twenty-three billion, four hundred twelve million, eight hundred thirty-six thousand, one hundred thirty-eight".