11917959132 has 48 divisors (see below), whose sum is σ = 28860249600. Its totient is φ = 3823296960.

The previous prime is 11917959121. The next prime is 11917959143. The reversal of 11917959132 is 23195971911.

It is an interprime number because it is at equal distance from previous prime (11917959121) and next prime (11917959143).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53169 + ... + 163287.

It is an arithmetic number, because the mean of its divisors is an integer number (601255200).

Almost surely, 2^11917959132 is an apocalyptic number.

11917959132 is a gapful number since it is divisible by the number (12) 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 11917959132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14430124800).

11917959132 is an abundant number, since it is smaller than the sum of its proper divisors (16942290468).

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

11917959132 is a wasteful number, since it uses less digits than its factorization.

11917959132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110466 (or 110464 counting only the distinct ones).

The product of its digits is 153090, while the sum is 48.

The spelling of 11917959132 in words is "eleven billion, nine hundred seventeen million, nine hundred fifty-nine thousand, one hundred thirty-two".