85953287593 has 2 divisors, whose sum is σ = 85953287594. Its totient is φ = 85953287592.

The previous prime is 85953287569. The next prime is 85953287611. The reversal of 85953287593 is 39578235958.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61242390784 + 24710896809 = 247472^2 + 157197^2 .

It is a cyclic number.

It is not a de Polignac number, because 85953287593 - 2²¹ = 85951190441 is a prime.

It is not a weakly prime, because it can be changed into another prime (85953287513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42976643796 + 42976643797.

It is an arithmetic number, because the mean of its divisors is an integer number (42976643797).

Almost surely, 2^85953287593 is an apocalyptic number.

It is an amenable number.

85953287593 is a deficient number, since it is larger than the sum of its proper divisors (1).

85953287593 is an equidigital number, since it uses as much as digits as its factorization.

85953287593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648000, while the sum is 64.

The spelling of 85953287593 in words is "eighty-five billion, nine hundred fifty-three million, two hundred eighty-seven thousand, five hundred ninety-three".