2215242237757 has 2 divisors, whose sum is σ = 2215242237758. Its totient is φ = 2215242237756.

The previous prime is 2215242237751. The next prime is 2215242237799. The reversal of 2215242237757 is 7577322425122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2211826302841 + 3415934916 = 1487221^2 + 58446^2 .

It is a cyclic number.

It is not a de Polignac number, because 2215242237757 - 2¹¹ = 2215242235709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2215242237757.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2215242237751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107621118878 + 1107621118879.

It is an arithmetic number, because the mean of its divisors is an integer number (1107621118879).

Almost surely, 2^{2215242237757} is an apocalyptic number.

It is an amenable number.

2215242237757 is a deficient number, since it is larger than the sum of its proper divisors (1).

2215242237757 is an equidigital number, since it uses as much as digits as its factorization.

2215242237757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3292800, while the sum is 49.

The spelling of 2215242237757 in words is "two trillion, two hundred fifteen billion, two hundred forty-two million, two hundred thirty-seven thousand, seven hundred fifty-seven".