11620769888 has 144 divisors (see below), whose sum is σ = 28448775936. Its totient is φ = 4575168000.

The previous prime is 11620769869. The next prime is 11620769947. The reversal of 11620769888 is 88896702611.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9501245 + ... + 9502467.

It is an arithmetic number, because the mean of its divisors is an integer number (197560944).

Almost surely, 2^11620769888 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 11620769888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14224387968).

11620769888 is an abundant number, since it is smaller than the sum of its proper divisors (16828006048).

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

11620769888 is a wasteful number, since it uses less digits than its factorization.

11620769888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517 (or 1496 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 56.

The spelling of 11620769888 in words is "eleven billion, six hundred twenty million, seven hundred sixty-nine thousand, eight hundred eighty-eight".