11675478920 has 96 divisors (see below), whose sum is σ = 30590887680. Its totient is φ = 3998816640.

The previous prime is 11675478911. The next prime is 11675478923. The reversal of 11675478920 is 2987457611.

It is a happy number.

It is a super-2 number, since 2×11675478920² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11675478923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2292617 + ... + 2297703.

It is an arithmetic number, because the mean of its divisors is an integer number (318655080).

Almost surely, 2^11675478920 is an apocalyptic number.

11675478920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11675478920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15295443840).

11675478920 is an abundant number, since it is smaller than the sum of its proper divisors (18915408760).

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

11675478920 is a wasteful number, since it uses less digits than its factorization.

11675478920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6283 (or 6272 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 50.

The spelling of 11675478920 in words is "eleven billion, six hundred seventy-five million, four hundred seventy-eight thousand, nine hundred twenty".