11771869824 has 384 divisors, whose sum is σ = 41902660800. Its totient is φ = 3118694400.

The previous prime is 11771869817. The next prime is 11771869841. The reversal of 11771869824 is 42896817711.

It is a tau number, because it is divible by the number of its divisors (384).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3128104 + ... + 3131864.

Almost surely, 2^11771869824 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11771869824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20951330400).

11771869824 is an abundant number, since it is smaller than the sum of its proper divisors (30130790976).

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

11771869824 is a wasteful number, since it uses less digits than its factorization.

11771869824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3824 (or 3809 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 54.

The spelling of 11771869824 in words is "eleven billion, seven hundred seventy-one million, eight hundred sixty-nine thousand, eight hundred twenty-four".