11506444993 has 2 divisors, whose sum is σ = 11506444994. Its totient is φ = 11506444992.

The previous prime is 11506444967. The next prime is 11506445021. The reversal of 11506444993 is 39944460511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8387445889 + 3118999104 = 91583^2 + 55848^2 .

It is a cyclic number.

It is not a de Polignac number, because 11506444993 - 2²⁹ = 10969574081 is a prime.

It is not a weakly prime, because it can be changed into another prime (11506444903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5753222496 + 5753222497.

It is an arithmetic number, because the mean of its divisors is an integer number (5753222497).

Almost surely, 2^11506444993 is an apocalyptic number.

It is an amenable number.

11506444993 is a deficient number, since it is larger than the sum of its proper divisors (1).

11506444993 is an equidigital number, since it uses as much as digits as its factorization.

11506444993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 11506444993 in words is "eleven billion, five hundred six million, four hundred forty-four thousand, nine hundred ninety-three".