11995012577 has 2 divisors, whose sum is σ = 11995012578. Its totient is φ = 11995012576.

The previous prime is 11995012537. The next prime is 11995012591. The reversal of 11995012577 is 77521059911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10814128081 + 1180884496 = 103991^2 + 34364^2 .

It is an emirp because it is prime and its reverse (77521059911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11995012577 - 2³² = 7700045281 is a prime.

It is not a weakly prime, because it can be changed into another prime (11995012537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5997506288 + 5997506289.

It is an arithmetic number, because the mean of its divisors is an integer number (5997506289).

Almost surely, 2^11995012577 is an apocalyptic number.

It is an amenable number.

11995012577 is a deficient number, since it is larger than the sum of its proper divisors (1).

11995012577 is an equidigital number, since it uses as much as digits as its factorization.

11995012577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 198450, while the sum is 47.

The spelling of 11995012577 in words is "eleven billion, nine hundred ninety-five million, twelve thousand, five hundred seventy-seven".