5627806861 has 4 divisors (see below), whose sum is σ = 5627960092. Its totient is φ = 5627653632.

The previous prime is 5627806843. The next prime is 5627806883. The reversal of 5627806861 is 1686087265.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2724213636 + 2903593225 = 52194^2 + 53885^2 .

It is a cyclic number.

It is not a de Polignac number, because 5627806861 - 2¹⁵ = 5627774093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5627806801) 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, 14971 + ... + 107143.

It is an arithmetic number, because the mean of its divisors is an integer number (1406990023).

Almost surely, 2^5627806861 is an apocalyptic number.

It is an amenable number.

5627806861 is a deficient number, since it is larger than the sum of its proper divisors (153231).

5627806861 is an equidigital number, since it uses as much as digits as its factorization.

5627806861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153230.

The product of its (nonzero) digits is 967680, while the sum is 49.

The square root of 5627806861 is about 75018.7100728878. The cubic root of 5627806861 is about 1778.7424165396.

The spelling of 5627806861 in words is "five billion, six hundred twenty-seven million, eight hundred six thousand, eight hundred sixty-one".