5613981785 has 16 divisors (see below), whose sum is σ = 6907203072. Its totient is φ = 4377763200.

The previous prime is 5613981781. The next prime is 5613981799. The reversal of 5613981785 is 5871893165.

5613981785 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5613981785 - 2² = 5613981781 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5613981781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231800 + ... + 254870.

It is an arithmetic number, because the mean of its divisors is an integer number (431700192).

Almost surely, 2^5613981785 is an apocalyptic number.

It is an amenable number.

5613981785 is a deficient number, since it is larger than the sum of its proper divisors (1293221287).

5613981785 is a wasteful number, since it uses less digits than its factorization.

5613981785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24304.

The product of its digits is 1814400, while the sum is 53.

The square root of 5613981785 is about 74926.5092273756. The cubic root of 5613981785 is about 1777.2846898207.

The spelling of 5613981785 in words is "five billion, six hundred thirteen million, nine hundred eighty-one thousand, seven hundred eighty-five".