2207107681 has 2 divisors, whose sum is σ = 2207107682. Its totient is φ = 2207107680.

The previous prime is 2207107619. The next prime is 2207107687. The reversal of 2207107681 is 1867017022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2205147681 + 1960000 = 46959^2 + 1400^2 .

It is a cyclic number.

It is not a de Polignac number, because 2207107681 - 2¹¹ = 2207105633 is a prime.

It is a super-2 number, since 2×2207107681² = 9742648631058395522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2207107687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1103553840 + 1103553841.

It is an arithmetic number, because the mean of its divisors is an integer number (1103553841).

Almost surely, 2^2207107681 is an apocalyptic number.

It is an amenable number.

2207107681 is a deficient number, since it is larger than the sum of its proper divisors (1).

2207107681 is an equidigital number, since it uses as much as digits as its factorization.

2207107681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 2207107681 is about 46979.8646336917. The cubic root of 2207107681 is about 1301.9905758939.

The spelling of 2207107681 in words is "two billion, two hundred seven million, one hundred seven thousand, six hundred eighty-one".