853521211452 has 96 divisors (see below), whose sum is σ = 2451515540992. Its totient is φ = 225069808896.

The previous prime is 853521211429. The next prime is 853521211463. The reversal of 853521211452 is 254112125358.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 853521211452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7459458 + ... + 7573014.

Almost surely, 2^853521211452 is an apocalyptic number.

It is an amenable number.

853521211452 is an abundant number, since it is smaller than the sum of its proper divisors (1597994329540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

853521211452 is a wasteful number, since it uses less digits than its factorization.

853521211452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120467 (or 120465 counting only the distinct ones).

The product of its digits is 96000, while the sum is 39.

The spelling of 853521211452 in words is "eight hundred fifty-three billion, five hundred twenty-one million, two hundred eleven thousand, four hundred fifty-two".