11900859912 has 192 divisors, whose sum is σ = 34882848000. Its totient is φ = 3653258112.

The previous prime is 11900859899. The next prime is 11900859923. The reversal of 11900859912 is 21995800911.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18058639 + ... + 18059297.

It is an arithmetic number, because the mean of its divisors is an integer number (181681500).

Almost surely, 2^11900859912 is an apocalyptic number.

11900859912 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 11900859912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17441424000).

11900859912 is an abundant number, since it is smaller than the sum of its proper divisors (22981988088).

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

11900859912 is a wasteful number, since it uses less digits than its factorization.

11900859912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040 (or 1033 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 45.

The spelling of 11900859912 in words is "eleven billion, nine hundred million, eight hundred fifty-nine thousand, nine hundred twelve".