8107713585997 has 2 divisors, whose sum is σ = 8107713585998. Its totient is φ = 8107713585996.

The previous prime is 8107713585989. The next prime is 8107713586079. The reversal of 8107713585997 is 7995853177018.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6943114330441 + 1164599255556 = 2634979^2 + 1079166^2 .

It is a cyclic number.

It is not a de Polignac number, because 8107713585997 - 2³ = 8107713585989 is a prime.

It is a super-2 number, since 2×8107713585997² (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 (8107713585397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4053856792998 + 4053856792999.

It is an arithmetic number, because the mean of its divisors is an integer number (4053856792999).

Almost surely, 2^{8107713585997} is an apocalyptic number.

It is an amenable number.

8107713585997 is a deficient number, since it is larger than the sum of its proper divisors (1).

8107713585997 is an equidigital number, since it uses as much as digits as its factorization.

8107713585997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 133358400, while the sum is 70.

The spelling of 8107713585997 in words is "eight trillion, one hundred seven billion, seven hundred thirteen million, five hundred eighty-five thousand, nine hundred ninety-seven".