11965741788 has 432 divisors, whose sum is σ = 40760550432. Its totient is φ = 2696601600.

The previous prime is 11965741769. The next prime is 11965741807. The reversal of 11965741788 is 88714756911.

It is an interprime number because it is at equal distance from previous prime (11965741769) and next prime (11965741807).

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 143 ways as a sum of consecutive naturals, for example, 15723328 + ... + 15724088.

It is an arithmetic number, because the mean of its divisors is an integer number (94353126).

Almost surely, 2^11965741788 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 11965741788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20380275216).

11965741788 is an abundant number, since it is smaller than the sum of its proper divisors (28794808644).

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

11965741788 is a wasteful number, since it uses less digits than its factorization.

11965741788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834 (or 814 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 57.

The spelling of 11965741788 in words is "eleven billion, nine hundred sixty-five million, seven hundred forty-one thousand, seven hundred eighty-eight".