11578921583 has 2 divisors, whose sum is σ = 11578921584. Its totient is φ = 11578921582.

The previous prime is 11578921577. The next prime is 11578921609. The reversal of 11578921583 is 38512987511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11578921583 - 2¹⁴ = 11578905199 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11578921573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5789460791 + 5789460792.

It is an arithmetic number, because the mean of its divisors is an integer number (5789460792).

Almost surely, 2^11578921583 is an apocalyptic number.

11578921583 is a deficient number, since it is larger than the sum of its proper divisors (1).

11578921583 is an equidigital number, since it uses as much as digits as its factorization.

11578921583 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 50.

The spelling of 11578921583 in words is "eleven billion, five hundred seventy-eight million, nine hundred twenty-one thousand, five hundred eighty-three".