213561453522 has 16 divisors (see below), whose sum is σ = 427129058592. Its totient is φ = 71186125920.

The previous prime is 213561453517. The next prime is 213561453541. The reversal of 213561453522 is 225354165312.

213561453522 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281958 + ... + 711774.

It is an arithmetic number, because the mean of its divisors is an integer number (26695566162).

Almost surely, 2^213561453522 is an apocalyptic number.

213561453522 is an abundant number, since it is smaller than the sum of its proper divisors (213567605070).

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

213561453522 is a wasteful number, since it uses less digits than its factorization.

213561453522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512633.

The product of its digits is 216000, while the sum is 39.

The spelling of 213561453522 in words is "two hundred thirteen billion, five hundred sixty-one million, four hundred fifty-three thousand, five hundred twenty-two".