852528007861 has 4 divisors (see below), whose sum is σ = 852530032800. Its totient is φ = 852525982924.

The previous prime is 852528007843. The next prime is 852528007913. The reversal of 852528007861 is 168700825258.

852528007861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 852528007861 - 2¹⁹ = 852527483573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 852528007799 and 852528007808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (852528007061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116881 + ... + 1310998.

It is an arithmetic number, because the mean of its divisors is an integer number (213132508200).

Almost surely, 2^852528007861 is an apocalyptic number.

It is an amenable number.

852528007861 is a deficient number, since it is larger than the sum of its proper divisors (2024939).

852528007861 is a wasteful number, since it uses less digits than its factorization.

852528007861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2024938.

The product of its (nonzero) digits is 2150400, while the sum is 52.

The spelling of 852528007861 in words is "eight hundred fifty-two billion, five hundred twenty-eight million, seven thousand, eight hundred sixty-one".