11963751440 has 40 divisors (see below), whose sum is σ = 27826486848. Its totient is φ = 4783648640.

The previous prime is 11963751439. The next prime is 11963751517. The reversal of 11963751440 is 4415736911.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189299 + ... + 244461.

Almost surely, 2^11963751440 is an apocalyptic number.

11963751440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11963751440 is an abundant number, since it is smaller than the sum of its proper divisors (15862735408).

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

11963751440 is a wasteful number, since it uses less digits than its factorization.

11963751440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57887 (or 57881 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The spelling of 11963751440 in words is "eleven billion, nine hundred sixty-three million, seven hundred fifty-one thousand, four hundred forty".