11779612720 has 40 divisors (see below), whose sum is σ = 27398536560. Its totient is φ = 4709963520.

The previous prime is 11779612703. The next prime is 11779612721. The reversal of 11779612720 is 2721697711.

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

It is not an unprimeable number, because it can be changed into a prime (11779612721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181591 + ... + 237769.

It is an arithmetic number, because the mean of its divisors is an integer number (684963414).

Almost surely, 2^11779612720 is an apocalyptic number.

11779612720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11779612720 is an abundant number, since it is smaller than the sum of its proper divisors (15618923840).

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

11779612720 is a wasteful number, since it uses less digits than its factorization.

11779612720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58813 (or 58807 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 43.

The spelling of 11779612720 in words is "eleven billion, seven hundred seventy-nine million, six hundred twelve thousand, seven hundred twenty".