86307750197 has 2 divisors, whose sum is σ = 86307750198. Its totient is φ = 86307750196.

The previous prime is 86307750187. The next prime is 86307750227. The reversal of 86307750197 is 79105770368.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79168514161 + 7139236036 = 281369^2 + 84494^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86307750197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86307750187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43153875098 + 43153875099.

It is an arithmetic number, because the mean of its divisors is an integer number (43153875099).

Almost surely, 2^86307750197 is an apocalyptic number.

It is an amenable number.

86307750197 is a deficient number, since it is larger than the sum of its proper divisors (1).

86307750197 is an equidigital number, since it uses as much as digits as its factorization.

86307750197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2222640, while the sum is 53.

The spelling of 86307750197 in words is "eighty-six billion, three hundred seven million, seven hundred fifty thousand, one hundred ninety-seven".