2111400287617 has 2 divisors, whose sum is σ = 2111400287618. Its totient is φ = 2111400287616.

The previous prime is 2111400287611. The next prime is 2111400287641. The reversal of 2111400287617 is 7167820041112.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1488885599601 + 622514688016 = 1220199^2 + 788996^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111400287617 - 2⁷ = 2111400287489 is a prime.

It is a super-2 number, since 2×2111400287617² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2111400287617.

It is not a weakly prime, because it can be changed into another prime (2111400287611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055700143808 + 1055700143809.

It is an arithmetic number, because the mean of its divisors is an integer number (1055700143809).

Almost surely, 2^{2111400287617} is an apocalyptic number.

It is an amenable number.

2111400287617 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111400287617 is an equidigital number, since it uses as much as digits as its factorization.

2111400287617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37632, while the sum is 40.

The spelling of 2111400287617 in words is "two trillion, one hundred eleven billion, four hundred million, two hundred eighty-seven thousand, six hundred seventeen".