11715272357777 has 2 divisors, whose sum is σ = 11715272357778. Its totient is φ = 11715272357776.

The previous prime is 11715272357729. The next prime is 11715272357807. The reversal of 11715272357777 is 77775327251711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6068418389056 + 5646853968721 = 2463416^2 + 2376311^2 .

It is a cyclic number.

It is not a de Polignac number, because 11715272357777 - 2⁸ = 11715272357521 is a prime.

It is not a weakly prime, because it can be changed into another prime (11715272350777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5857636178888 + 5857636178889.

It is an arithmetic number, because the mean of its divisors is an integer number (5857636178889).

Almost surely, 2^{11715272357777} is an apocalyptic number.

It is an amenable number.

11715272357777 is a deficient number, since it is larger than the sum of its proper divisors (1).

11715272357777 is an equidigital number, since it uses as much as digits as its factorization.

11715272357777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35294700, while the sum is 62.

The spelling of 11715272357777 in words is "eleven trillion, seven hundred fifteen billion, two hundred seventy-two million, three hundred fifty-seven thousand, seven hundred seventy-seven".