85027143057 has 4 divisors (see below), whose sum is σ = 113369524080. Its totient is φ = 56684762036.

The previous prime is 85027143053. The next prime is 85027143059. The reversal of 85027143057 is 75034172058.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85027143057 - 2² = 85027143053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85027143053) 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 3 ways as a sum of consecutive naturals, for example, 14171190507 + ... + 14171190512.

It is an arithmetic number, because the mean of its divisors is an integer number (28342381020).

Almost surely, 2^85027143057 is an apocalyptic number.

It is an amenable number.

85027143057 is a deficient number, since it is larger than the sum of its proper divisors (28342381023).

85027143057 is a wasteful number, since it uses less digits than its factorization.

85027143057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28342381022.

The product of its (nonzero) digits is 235200, while the sum is 42.

The spelling of 85027143057 in words is "eighty-five billion, twenty-seven million, one hundred forty-three thousand, fifty-seven".