11810278042 has 8 divisors (see below), whose sum is σ = 18147500532. Its totient is φ = 5761111200.

The previous prime is 11810278021. The next prime is 11810278049. The reversal of 11810278042 is 24087201811.

It can be written as a sum of positive squares in 2 ways, for example, as 9707963841 + 2102314201 = 98529^2 + 45851^2 .

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 = 11810277989 and 11810278007.

It is not an unprimeable number, because it can be changed into a prime (11810278049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72013809 + ... + 72013972.

Almost surely, 2^11810278042 is an apocalyptic number.

11810278042 is a deficient number, since it is larger than the sum of its proper divisors (6337222490).

11810278042 is a wasteful number, since it uses less digits than its factorization.

11810278042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144027824.

The product of its (nonzero) digits is 7168, while the sum is 34.

Adding to 11810278042 its reverse (24087201811), we get a palindrome (35897479853).

The spelling of 11810278042 in words is "eleven billion, eight hundred ten million, two hundred seventy-eight thousand, forty-two".