5775646991 has 4 divisors (see below), whose sum is σ = 5776837584. Its totient is φ = 5774456400.

The previous prime is 5775646969. The next prime is 5775647021. The reversal of 5775646991 is 1996465775.

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-5775646991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5775646991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5775640991) 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 3 ways as a sum of consecutive naturals, for example, 587990 + ... + 597731.

It is an arithmetic number, because the mean of its divisors is an integer number (1444209396).

Almost surely, 2^5775646991 is an apocalyptic number.

5775646991 is a deficient number, since it is larger than the sum of its proper divisors (1190593).

5775646991 is a wasteful number, since it uses less digits than its factorization.

5775646991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190592.

The product of its digits is 14288400, while the sum is 59.

The square root of 5775646991 is about 75997.6775368827. The cubic root of 5775646991 is about 1794.1835907866.

The spelling of 5775646991 in words is "five billion, seven hundred seventy-five million, six hundred forty-six thousand, nine hundred ninety-one".