5581286779 has 24 divisors (see below), whose sum is σ = 6224486400. Its totient is φ = 4996890240.

The previous prime is 5581286773. The next prime is 5581286791. The reversal of 5581286779 is 9776821855.

It is not a de Polignac number, because 5581286779 - 2⁵ = 5581286747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5581286773) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 523302 + ... + 533860.

It is an arithmetic number, because the mean of its divisors is an integer number (259353600).

Almost surely, 2^5581286779 is an apocalyptic number.

5581286779 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

5581286779 is a deficient number, since it is larger than the sum of its proper divisors (643199621).

5581286779 is a wasteful number, since it uses less digits than its factorization.

5581286779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10683 (or 10666 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 58.

The square root of 5581286779 is about 74708.0101394757. The cubic root of 5581286779 is about 1773.8277551512.

The spelling of 5581286779 in words is "five billion, five hundred eighty-one million, two hundred eighty-six thousand, seven hundred seventy-nine".