852845134901 has 4 divisors (see below), whose sum is σ = 853434524832. Its totient is φ = 852255744972.

The previous prime is 852845134879. The next prime is 852845134903. The reversal of 852845134901 is 109431548258.

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 a de Polignac number, because none of the positive numbers 2^k-852845134901 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 852845134901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (852845134903) 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, 294692795 + ... + 294695688.

It is an arithmetic number, because the mean of its divisors is an integer number (213358631208).

Almost surely, 2^852845134901 is an apocalyptic number.

It is an amenable number.

852845134901 is a deficient number, since it is larger than the sum of its proper divisors (589389931).

852845134901 is a wasteful number, since it uses less digits than its factorization.

852845134901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589389930.

The product of its (nonzero) digits is 1382400, while the sum is 50.

The spelling of 852845134901 in words is "eight hundred fifty-two billion, eight hundred forty-five million, one hundred thirty-four thousand, nine hundred one".