6113489791 has 4 divisors (see below), whose sum is σ = 6160157784. Its totient is φ = 6066821800.

The previous prime is 6113489777. The next prime is 6113489801. The reversal of 6113489791 is 1979843116.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6113489791 is a prime.

It is a super-2 number, since 2×6113489791² = 74749514849322447362, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6113489491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23333800 + ... + 23334061.

It is an arithmetic number, because the mean of its divisors is an integer number (1540039446).

Almost surely, 2^6113489791 is an apocalyptic number.

6113489791 is a deficient number, since it is larger than the sum of its proper divisors (46667993).

6113489791 is a wasteful number, since it uses less digits than its factorization.

6113489791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46667992.

The product of its digits is 326592, while the sum is 49.

The square root of 6113489791 is about 78188.8086045567. The cubic root of 6113489791 is about 1828.5060309320.

The spelling of 6113489791 in words is "six billion, one hundred thirteen million, four hundred eighty-nine thousand, seven hundred ninety-one".