11572580491 has 2 divisors, whose sum is σ = 11572580492. Its totient is φ = 11572580490.

The previous prime is 11572580431. The next prime is 11572580543. The reversal of 11572580491 is 19408527511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11572580491 - 2¹⁷ = 11572449419 is a prime.

It is not a weakly prime, because it can be changed into another prime (11572580431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5786290245 + 5786290246.

It is an arithmetic number, because the mean of its divisors is an integer number (5786290246).

Almost surely, 2^11572580491 is an apocalyptic number.

11572580491 is a deficient number, since it is larger than the sum of its proper divisors (1).

11572580491 is an equidigital number, since it uses as much as digits as its factorization.

11572580491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 43.

The spelling of 11572580491 in words is "eleven billion, five hundred seventy-two million, five hundred eighty thousand, four hundred ninety-one".