85938521153 has 2 divisors, whose sum is σ = 85938521154. Its totient is φ = 85938521152.

The previous prime is 85938521113. The next prime is 85938521167. The reversal of 85938521153 is 35112583958.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70027978384 + 15910542769 = 264628^2 + 126137^2 .

It is a cyclic number.

It is not a de Polignac number, because 85938521153 - 2³⁶ = 17219044417 is a prime.

It is not a weakly prime, because it can be changed into another prime (85938521113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42969260576 + 42969260577.

It is an arithmetic number, because the mean of its divisors is an integer number (42969260577).

Almost surely, 2^85938521153 is an apocalyptic number.

It is an amenable number.

85938521153 is a deficient number, since it is larger than the sum of its proper divisors (1).

85938521153 is an equidigital number, since it uses as much as digits as its factorization.

85938521153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296000, while the sum is 50.

The spelling of 85938521153 in words is "eighty-five billion, nine hundred thirty-eight million, five hundred twenty-one thousand, one hundred fifty-three".