2105637535847 has 2 divisors, whose sum is σ = 2105637535848. Its totient is φ = 2105637535846.

The previous prime is 2105637535811. The next prime is 2105637535853. The reversal of 2105637535847 is 7485357365012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2105637535847 - 2³⁴ = 2088457666663 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2105637535792 and 2105637535801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2105637535147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052818767923 + 1052818767924.

It is an arithmetic number, because the mean of its divisors is an integer number (1052818767924).

Almost surely, 2^{2105637535847} is an apocalyptic number.

2105637535847 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105637535847 is an equidigital number, since it uses as much as digits as its factorization.

2105637535847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168000, while the sum is 56.

The spelling of 2105637535847 in words is "two trillion, one hundred five billion, six hundred thirty-seven million, five hundred thirty-five thousand, eight hundred forty-seven".