8109725584127 has 2 divisors, whose sum is σ = 8109725584128. Its totient is φ = 8109725584126.

The previous prime is 8109725584067. The next prime is 8109725584159. The reversal of 8109725584127 is 7214855279018.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8109725584127 - 2¹⁶ = 8109725518591 is a prime.

It is a super-2 number, since 2×8109725584127² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8109725584027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4054862792063 + 4054862792064.

It is an arithmetic number, because the mean of its divisors is an integer number (4054862792064).

Almost surely, 2^{8109725584127} is an apocalyptic number.

8109725584127 is a deficient number, since it is larger than the sum of its proper divisors (1).

8109725584127 is an equidigital number, since it uses as much as digits as its factorization.

8109725584127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11289600, while the sum is 59.

The spelling of 8109725584127 in words is "eight trillion, one hundred nine billion, seven hundred twenty-five million, five hundred eighty-four thousand, one hundred twenty-seven".