11875865444 has 12 divisors (see below), whose sum is σ = 20783743344. Its totient is φ = 5937653064.

The previous prime is 11875865437. The next prime is 11875865447. The reversal of 11875865444 is 44456857811.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11875865447) 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, 47567 + ... + 161289.

It is an arithmetic number, because the mean of its divisors is an integer number (1731978612).

Almost surely, 2^11875865444 is an apocalyptic number.

It is an amenable number.

11875865444 is a deficient number, since it is larger than the sum of its proper divisors (8907877900).

11875865444 is a wasteful number, since it uses less digits than its factorization.

11875865444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139834 (or 139832 counting only the distinct ones).

The product of its digits is 4300800, while the sum is 53.

The spelling of 11875865444 in words is "eleven billion, eight hundred seventy-five million, eight hundred sixty-five thousand, four hundred forty-four".