11444447800 has 48 divisors (see below), whose sum is σ = 27327503160. Its totient is φ = 4454052480.

The previous prime is 11444447797. The next prime is 11444447849. The reversal of 11444447800 is 874444411.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 11444447800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 765874 + ... + 780673.

Almost surely, 2^11444447800 is an apocalyptic number.

11444447800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11444447800 is an abundant number, since it is smaller than the sum of its proper divisors (15883055360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11444447800 is a wasteful number, since it uses less digits than its factorization.

11444447800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546600 (or 1546591 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 37.

The spelling of 11444447800 in words is "eleven billion, four hundred forty-four million, four hundred forty-seven thousand, eight hundred".