11138916577 has 2 divisors, whose sum is σ = 11138916578. Its totient is φ = 11138916576.

The previous prime is 11138916557. The next prime is 11138916587. The reversal of 11138916577 is 77561983111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7003011856 + 4135904721 = 83684^2 + 64311^2 .

It is a cyclic number.

It is not a de Polignac number, because 11138916577 - 2¹⁹ = 11138392289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11138916577.

It is not a weakly prime, because it can be changed into another prime (11138916557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5569458288 + 5569458289.

It is an arithmetic number, because the mean of its divisors is an integer number (5569458289).

Almost surely, 2^11138916577 is an apocalyptic number.

It is an amenable number.

11138916577 is a deficient number, since it is larger than the sum of its proper divisors (1).

11138916577 is an equidigital number, since it uses as much as digits as its factorization.

11138916577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 49.

The spelling of 11138916577 in words is "eleven billion, one hundred thirty-eight million, nine hundred sixteen thousand, five hundred seventy-seven".