852549152977 has 4 divisors (see below), whose sum is σ = 852620561716. Its totient is φ = 852477744240.

The previous prime is 852549152957. The next prime is 852549152981. The reversal of 852549152977 is 779251945258.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 433669663296 + 418879489681 = 658536^2 + 647209^2 .

It is a cyclic number.

It is not a de Polignac number, because 852549152977 - 2²⁷ = 852414935249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (852549152957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35686458 + ... + 35710339.

It is an arithmetic number, because the mean of its divisors is an integer number (213155140429).

Almost surely, 2^852549152977 is an apocalyptic number.

It is an amenable number.

852549152977 is a deficient number, since it is larger than the sum of its proper divisors (71408739).

852549152977 is a wasteful number, since it uses less digits than its factorization.

852549152977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71408738.

The product of its digits is 63504000, while the sum is 64.

The spelling of 852549152977 in words is "eight hundred fifty-two billion, five hundred forty-nine million, one hundred fifty-two thousand, nine hundred seventy-seven".