5613621191 has 2 divisors, whose sum is σ = 5613621192. Its totient is φ = 5613621190.

The previous prime is 5613621163. The next prime is 5613621199. The reversal of 5613621191 is 1911263165.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5613621191 - 2²² = 5609426887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5613621199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2806810595 + 2806810596.

It is an arithmetic number, because the mean of its divisors is an integer number (2806810596).

Almost surely, 2^5613621191 is an apocalyptic number.

5613621191 is a deficient number, since it is larger than the sum of its proper divisors (1).

5613621191 is an equidigital number, since it uses as much as digits as its factorization.

5613621191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 35.

The square root of 5613621191 is about 74924.1028708386. The cubic root of 5613621191 is about 1777.2466365018.

The spelling of 5613621191 in words is "five billion, six hundred thirteen million, six hundred twenty-one thousand, one hundred ninety-one".