213027801732 has 144 divisors (see below), whose sum is σ = 569810841600. Its totient is φ = 66999441600.

The previous prime is 213027801709. The next prime is 213027801769. The reversal of 213027801732 is 237108720312.

213027801732 is a `hidden beast` number, since 213 + 0 + 278 + 0 + 173 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 28741107 + ... + 28748517.

Almost surely, 2^213027801732 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 213027801732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284905420800).

213027801732 is an abundant number, since it is smaller than the sum of its proper divisors (356783039868).

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

213027801732 is a wasteful number, since it uses less digits than its factorization.

213027801732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8094 (or 8089 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The spelling of 213027801732 in words is "two hundred thirteen billion, twenty-seven million, eight hundred one thousand, seven hundred thirty-two".