11581179306787 has 2 divisors, whose sum is σ = 11581179306788. Its totient is φ = 11581179306786.

The previous prime is 11581179306703. The next prime is 11581179306859. The reversal of 11581179306787 is 78760397118511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11581179306787 - 2⁷ = 11581179306659 is a prime.

It is not a weakly prime, because it can be changed into another prime (11581179306187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5790589653393 + 5790589653394.

It is an arithmetic number, because the mean of its divisors is an integer number (5790589653394).

Almost surely, 2^{11581179306787} is an apocalyptic number.

11581179306787 is a deficient number, since it is larger than the sum of its proper divisors (1).

11581179306787 is an equidigital number, since it uses as much as digits as its factorization.

11581179306787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17781120, while the sum is 64.

The spelling of 11581179306787 in words is "eleven trillion, five hundred eighty-one billion, one hundred seventy-nine million, three hundred six thousand, seven hundred eighty-seven".