85126010197 has 2 divisors, whose sum is σ = 85126010198. Its totient is φ = 85126010196.

The previous prime is 85126010089. The next prime is 85126010231. The reversal of 85126010197 is 79101062158.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78961562001 + 6164448196 = 281001^2 + 78514^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85126010197 is a prime.

It is a super-2 number, since 2×85126010197² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85126020197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42563005098 + 42563005099.

It is an arithmetic number, because the mean of its divisors is an integer number (42563005099).

Almost surely, 2^85126010197 is an apocalyptic number.

It is an amenable number.

85126010197 is a deficient number, since it is larger than the sum of its proper divisors (1).

85126010197 is an equidigital number, since it uses as much as digits as its factorization.

85126010197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 40.

The spelling of 85126010197 in words is "eighty-five billion, one hundred twenty-six million, ten thousand, one hundred ninety-seven".