13355803779 has 16 divisors (see below), whose sum is σ = 18955612800. Its totient is φ = 8340463296.

The previous prime is 13355803777. The next prime is 13355803787. The reversal of 13355803779 is 97730855331.

It is not a de Polignac number, because 13355803779 - 2¹ = 13355803777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13355803777) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1311289 + ... + 1321434.

It is an arithmetic number, because the mean of its divisors is an integer number (1184725800).

Almost surely, 2^13355803779 is an apocalyptic number.

13355803779 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

13355803779 is a deficient number, since it is larger than the sum of its proper divisors (5599809021).

13355803779 is a wasteful number, since it uses less digits than its factorization.

13355803779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2632834.

The product of its (nonzero) digits is 2381400, while the sum is 51.

The spelling of 13355803779 in words is "thirteen billion, three hundred fifty-five million, eight hundred three thousand, seven hundred seventy-nine".