85380363081 has 36 divisors (see below), whose sum is σ = 133707869568. Its totient is φ = 52477150752.

The previous prime is 85380363037. The next prime is 85380363119. The reversal of 85380363081 is 18036308358.

85380363081 is a `hidden beast` number, since 8 + 5 + 3 + 8 + 0 + 3 + 630 + 8 + 1 = 666.

It is not a de Polignac number, because 85380363081 - 2¹⁹ = 85379838793 is a prime.

It is a super-2 number, since 2×85380363081² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85380363281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1217680 + ... + 1285886.

It is an arithmetic number, because the mean of its divisors is an integer number (3714107488).

Almost surely, 2^85380363081 is an apocalyptic number.

It is an amenable number.

85380363081 is a deficient number, since it is larger than the sum of its proper divisors (48327506487).

85380363081 is a wasteful number, since it uses less digits than its factorization.

85380363081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69062 (or 69046 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 85380363081 in words is "eighty-five billion, three hundred eighty million, three hundred sixty-three thousand, eighty-one".