213572191632 has 80 divisors (see below), whose sum is σ = 584277157440. Its totient is φ = 66992214016.

The previous prime is 213572191619. The next prime is 213572191643. The reversal of 213572191632 is 236191275312.

It is a super-2 number, since 2×213572191632² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6126283 + ... + 6161045.

It is an arithmetic number, because the mean of its divisors is an integer number (7303464468).

Almost surely, 2^213572191632 is an apocalyptic number.

It is an amenable number.

213572191632 is an abundant number, since it is smaller than the sum of its proper divisors (370704965808).

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

213572191632 is a wasteful number, since it uses less digits than its factorization.

213572191632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42320 (or 42314 counting only the distinct ones).

The product of its digits is 136080, while the sum is 42.

The spelling of 213572191632 in words is "two hundred thirteen billion, five hundred seventy-two million, one hundred ninety-one thousand, six hundred thirty-two".