11780931840 has 72 divisors (see below), whose sum is σ = 37625363328. Its totient is φ = 3141580800.

The previous prime is 11780931823. The next prime is 11780931871. The reversal of 11780931840 is 4813908711.

It is a junction number, because it is equal to n+sod(n) for n = 11780931792 and 11780931801.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1530136 + ... + 1537815.

Almost surely, 2^11780931840 is an apocalyptic number.

11780931840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11780931840 is an abundant number, since it is smaller than the sum of its proper divisors (25844431488).

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

11780931840 is an equidigital number, since it uses as much as digits as its factorization.

11780931840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3067975 (or 3067961 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 42.

The spelling of 11780931840 in words is "eleven billion, seven hundred eighty million, nine hundred thirty-one thousand, eight hundred forty".