213810421610 has 16 divisors (see below), whose sum is σ = 385693601832. Its totient is φ = 85338648000.

The previous prime is 213810421549. The next prime is 213810421633. The reversal of 213810421610 is 16124018312.

It can be written as a sum of positive squares in 4 ways, for example, as 158325205801 + 55485215809 = 397901^2 + 235553^2 .

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 7 ways as a sum of consecutive naturals, for example, 23185241 + ... + 23194460.

Almost surely, 2^213810421610 is an apocalyptic number.

213810421610 is a deficient number, since it is larger than the sum of its proper divisors (171883180222).

213810421610 is a wasteful number, since it uses less digits than its factorization.

213810421610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46380169.

The product of its (nonzero) digits is 2304, while the sum is 29.

Adding to 213810421610 its reverse (16124018312), we get a palindrome (229934439922).

The spelling of 213810421610 in words is "two hundred thirteen billion, eight hundred ten million, four hundred twenty-one thousand, six hundred ten".