11809150464 has 80 divisors (see below), whose sum is σ = 31483275120. Its totient is φ = 3933511680.

The previous prime is 11809150319. The next prime is 11809150469. The reversal of 11809150464 is 46405190811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11809150469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3655602 + ... + 3658830.

It is an arithmetic number, because the mean of its divisors is an integer number (393540939).

Almost surely, 2^11809150464 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 11809150464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15741637560).

11809150464 is an abundant number, since it is smaller than the sum of its proper divisors (19674124656).

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

11809150464 is an equidigital number, since it uses as much as digits as its factorization.

11809150464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5631 (or 5615 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The spelling of 11809150464 in words is "eleven billion, eight hundred nine million, one hundred fifty thousand, four hundred sixty-four".