11939503680 has 784 divisors, whose sum is σ = 47759867904. Its totient is φ = 2821754880.

The previous prime is 11939503673. The next prime is 11939503739. The reversal of 11939503680 is 8630593911.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 94011777 + ... + 94011903.

Almost surely, 2^11939503680 is an apocalyptic number.

11939503680 is a gapful number since it is divisible by the number (10) 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 11939503680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23879933952).

11939503680 is an abundant number, since it is smaller than the sum of its proper divisors (35820364224).

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

11939503680 is a wasteful number, since it uses less digits than its factorization.

11939503680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The spelling of 11939503680 in words is "eleven billion, nine hundred thirty-nine million, five hundred three thousand, six hundred eighty".