11823139642 has 8 divisors (see below), whose sum is σ = 17805366432. Its totient is φ = 5888017500.

The previous prime is 11823139609. The next prime is 11823139649. The reversal of 11823139642 is 24693132811.

It is a happy number.

11823139642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 11823139595 and 11823139604.

It is not an unprimeable number, because it can be changed into a prime (11823139649) 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, 11775534 + ... + 11776537.

It is an arithmetic number, because the mean of its divisors is an integer number (2225670804).

Almost surely, 2^11823139642 is an apocalyptic number.

11823139642 is a deficient number, since it is larger than the sum of its proper divisors (5982226790).

11823139642 is a wasteful number, since it uses less digits than its factorization.

11823139642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23552324.

The product of its digits is 62208, while the sum is 40.

The spelling of 11823139642 in words is "eleven billion, eight hundred twenty-three million, one hundred thirty-nine thousand, six hundred forty-two".