213144031456806 has 32 divisors (see below), whose sum is σ = 435488801034240. Its totient is φ = 69515462322176.

The previous prime is 213144031456793. The next prime is 213144031456859. The reversal of 213144031456806 is 608654130441312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112583286 + ... + 114460841.

It is an arithmetic number, because the mean of its divisors is an integer number (13609025032320).

Almost surely, 2^{213144031456806} is an apocalyptic number.

213144031456806 is an abundant number, since it is smaller than the sum of its proper divisors (222344769577434).

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

213144031456806 is a wasteful number, since it uses less digits than its factorization.

213144031456806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227047508.

The product of its (nonzero) digits is 1658880, while the sum is 48.

The spelling of 213144031456806 in words is "two hundred thirteen trillion, one hundred forty-four billion, thirty-one million, four hundred fifty-six thousand, eight hundred six".