204213535671 has 16 divisors (see below), whose sum is σ = 286004805120. Its totient is φ = 129360712800.

The previous prime is 204213535661. The next prime is 204213535697. The reversal of 204213535671 is 176535312402.

It is not a de Polignac number, because 204213535671 - 2¹⁰ = 204213534647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204213535661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9789636 + ... + 9810473.

It is an arithmetic number, because the mean of its divisors is an integer number (17875300320).

Almost surely, 2^204213535671 is an apocalyptic number.

204213535671 is a deficient number, since it is larger than the sum of its proper divisors (81791269449).

204213535671 is a wasteful number, since it uses less digits than its factorization.

204213535671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19600286.

The product of its (nonzero) digits is 151200, while the sum is 39.

The spelling of 204213535671 in words is "two hundred four billion, two hundred thirteen million, five hundred thirty-five thousand, six hundred seventy-one".