85270507481 has 2 divisors, whose sum is σ = 85270507482. Its totient is φ = 85270507480.

The previous prime is 85270507409. The next prime is 85270507547. The reversal of 85270507481 is 18470507258.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85229547481 + 40960000 = 291941^2 + 6400^2 .

It is a cyclic number.

It is not a de Polignac number, because 85270507481 - 2²⁶ = 85203398617 is a prime.

It is a super-2 number, since 2×85270507481² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (85270507181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42635253740 + 42635253741.

It is an arithmetic number, because the mean of its divisors is an integer number (42635253741).

Almost surely, 2^85270507481 is an apocalyptic number.

It is an amenable number.

85270507481 is a deficient number, since it is larger than the sum of its proper divisors (1).

85270507481 is an equidigital number, since it uses as much as digits as its factorization.

85270507481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 627200, while the sum is 47.

The spelling of 85270507481 in words is "eighty-five billion, two hundred seventy million, five hundred seven thousand, four hundred eighty-one".