5631186091 has 2 divisors, whose sum is σ = 5631186092. Its totient is φ = 5631186090.

The previous prime is 5631186079. The next prime is 5631186101. The reversal of 5631186091 is 1906811365.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5631186091 - 2⁹ = 5631185579 is a prime.

It is not a weakly prime, because it can be changed into another prime (5631186031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2815593045 + 2815593046.

It is an arithmetic number, because the mean of its divisors is an integer number (2815593046).

Almost surely, 2^5631186091 is an apocalyptic number.

5631186091 is a deficient number, since it is larger than the sum of its proper divisors (1).

5631186091 is an equidigital number, since it uses as much as digits as its factorization.

5631186091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 5631186091 is about 75041.2292743129. The cubic root of 5631186091 is about 1779.0983620097.

The spelling of 5631186091 in words is "five billion, six hundred thirty-one million, one hundred eighty-six thousand, ninety-one".