11945109582 has 128 divisors (see below), whose sum is σ = 32071680000. Its totient is φ = 3219271776.

The previous prime is 11945109577. The next prime is 11945109607. The reversal of 11945109582 is 28590154911.

11945109582 is a `hidden beast` number, since 1 + 19 + 4 + 51 + 0 + 9 + 582 = 666.

11945109582 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1713019 + ... + 1719977.

It is an arithmetic number, because the mean of its divisors is an integer number (250560000).

Almost surely, 2^11945109582 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11945109582, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16035840000).

11945109582 is an abundant number, since it is smaller than the sum of its proper divisors (20126570418).

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

11945109582 is a wasteful number, since it uses less digits than its factorization.

11945109582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7235 (or 7229 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 45.

The spelling of 11945109582 in words is "eleven billion, nine hundred forty-five million, one hundred nine thousand, five hundred eighty-two".