11884449720 has 128 divisors (see below), whose sum is σ = 41886512640. Its totient is φ = 2659453440.

The previous prime is 11884449697. The next prime is 11884449739. The reversal of 11884449720 is 2794448811.

It is a self number, because there is not a number n which added to its sum of digits gives 11884449720.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 329124 + ... + 363443.

It is an arithmetic number, because the mean of its divisors is an integer number (327238380).

Almost surely, 2^11884449720 is an apocalyptic number.

11884449720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11884449720 is an abundant number, since it is smaller than the sum of its proper divisors (30002062920).

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

11884449720 is a wasteful number, since it uses less digits than its factorization.

11884449720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692605 (or 692601 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 48.

Subtracting from 11884449720 its reverse (2794448811), we obtain a palindrome (9090000909).

The spelling of 11884449720 in words is "eleven billion, eight hundred eighty-four million, four hundred forty-nine thousand, seven hundred twenty".