85637528297 has 2 divisors, whose sum is σ = 85637528298. Its totient is φ = 85637528296.

The previous prime is 85637528287. The next prime is 85637528309. The reversal of 85637528297 is 79282573658.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71280456256 + 14357072041 = 266984^2 + 119821^2 .

It is a cyclic number.

It is not a de Polignac number, because 85637528297 - 2⁶ = 85637528233 is a prime.

It is not a weakly prime, because it can be changed into another prime (85637528227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42818764148 + 42818764149.

It is an arithmetic number, because the mean of its divisors is an integer number (42818764149).

Almost surely, 2^85637528297 is an apocalyptic number.

It is an amenable number.

85637528297 is a deficient number, since it is larger than the sum of its proper divisors (1).

85637528297 is an equidigital number, since it uses as much as digits as its factorization.

85637528297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50803200, while the sum is 62.

The spelling of 85637528297 in words is "eighty-five billion, six hundred thirty-seven million, five hundred twenty-eight thousand, two hundred ninety-seven".