11952171389352 has 128 divisors (see below), whose sum is σ = 33015628200960. Its totient is φ = 3586457656320.

The previous prime is 11952171389341. The next prime is 11952171389383. The reversal of 11952171389352 is 25398317125911.

It is a junction number, because it is equal to n+sod(n) for n = 11952171389292 and 11952171389301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 238431763 + ... + 238481885.

It is an arithmetic number, because the mean of its divisors is an integer number (257934595320).

Almost surely, 2^{11952171389352} is an apocalyptic number.

11952171389352 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 11952171389352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16507814100480).

11952171389352 is an abundant number, since it is smaller than the sum of its proper divisors (21063456811608).

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

11952171389352 is a wasteful number, since it uses less digits than its factorization.

11952171389352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75583 (or 75579 counting only the distinct ones).

The product of its digits is 4082400, while the sum is 57.

The spelling of 11952171389352 in words is "eleven trillion, nine hundred fifty-two billion, one hundred seventy-one million, three hundred eighty-nine thousand, three hundred fifty-two".