13411779920 has 80 divisors (see below), whose sum is σ = 38876761728. Its totient is φ = 4180293120.

The previous prime is 13411779841. The next prime is 13411779923. The reversal of 13411779920 is 2997711431.

13411779920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13411779923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1082459 + ... + 1094778.

Almost surely, 2^13411779920 is an apocalyptic number.

13411779920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13411779920 is an abundant number, since it is smaller than the sum of its proper divisors (25464981808).

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

13411779920 is a wasteful number, since it uses less digits than its factorization.

13411779920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177268 (or 2177262 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 44.

The spelling of 13411779920 in words is "thirteen billion, four hundred eleven million, seven hundred seventy-nine thousand, nine hundred twenty".