213253964532 has 144 divisors (see below), whose sum is σ = 630800282112. Its totient is φ = 59474399040.

The previous prime is 213253964503. The next prime is 213253964543. The reversal of 213253964532 is 235469352312.

213253964532 is a `hidden beast` number, since 2 + 1 + 3 + 2 + 53 + 9 + 64 + 532 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19618563 + ... + 19629429.

Almost surely, 2^213253964532 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213253964532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315400141056).

213253964532 is an abundant number, since it is smaller than the sum of its proper divisors (417546317580).

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

213253964532 is a wasteful number, since it uses less digits than its factorization.

213253964532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12738 (or 12733 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 45.

The spelling of 213253964532 in words is "two hundred thirteen billion, two hundred fifty-three million, nine hundred sixty-four thousand, five hundred thirty-two".