11809155792 has 40 divisors (see below), whose sum is σ = 34865127616. Its totient is φ = 3374044416.

The previous prime is 11809155781. The next prime is 11809155817. The reversal of 11809155792 is 29755190811.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 17572813 + ... + 17573484.

Almost surely, 2^11809155792 is an apocalyptic number.

11809155792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11809155792 is an abundant number, since it is smaller than the sum of its proper divisors (23055971824).

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

11809155792 is a wasteful number, since it uses less digits than its factorization.

11809155792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35146315 (or 35146309 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 48.

The spelling of 11809155792 in words is "eleven billion, eight hundred nine million, one hundred fifty-five thousand, seven hundred ninety-two".