7361111861 has 2 divisors, whose sum is σ = 7361111862. Its totient is φ = 7361111860.

The previous prime is 7361111831. The next prime is 7361111867. The reversal of 7361111861 is 1681111637.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7135180900 + 225930961 = 84470^2 + 15031^2 .

It is a cyclic number.

It is not a de Polignac number, because 7361111861 - 2²⁶ = 7294002997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7361111867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3680555930 + 3680555931.

It is an arithmetic number, because the mean of its divisors is an integer number (3680555931).

Almost surely, 2^7361111861 is an apocalyptic number.

It is an amenable number.

7361111861 is a deficient number, since it is larger than the sum of its proper divisors (1).

7361111861 is an equidigital number, since it uses as much as digits as its factorization.

7361111861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 35.

The square root of 7361111861 is about 85796.9222116971. The cubic root of 7361111861 is about 1945.2755989174.

The spelling of 7361111861 in words is "seven billion, three hundred sixty-one million, one hundred eleven thousand, eight hundred sixty-one".