2245691356837 has 2 divisors, whose sum is σ = 2245691356838. Its totient is φ = 2245691356836.

The previous prime is 2245691356823. The next prime is 2245691356919. The reversal of 2245691356837 is 7386531965422.

2245691356837 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1922551406721 + 323139950116 = 1386561^2 + 568454^2 .

It is a cyclic number.

It is not a de Polignac number, because 2245691356837 - 2²⁷ = 2245557139109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2245691356037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1122845678418 + 1122845678419.

It is an arithmetic number, because the mean of its divisors is an integer number (1122845678419).

Almost surely, 2^{2245691356837} is an apocalyptic number.

It is an amenable number.

2245691356837 is a deficient number, since it is larger than the sum of its proper divisors (1).

2245691356837 is an equidigital number, since it uses as much as digits as its factorization.

2245691356837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 65318400, while the sum is 61.

The spelling of 2245691356837 in words is "two trillion, two hundred forty-five billion, six hundred ninety-one million, three hundred fifty-six thousand, eight hundred thirty-seven".