213881173338 has 32 divisors (see below), whose sum is σ = 493617586176. Its totient is φ = 60515615088.

The previous prime is 213881173277. The next prime is 213881173343. The reversal of 213881173338 is 833371188312.

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, 24716106 + ... + 24724757.

It is an arithmetic number, because the mean of its divisors is an integer number (15425549568).

Almost surely, 2^213881173338 is an apocalyptic number.

213881173338 is an abundant number, since it is smaller than the sum of its proper divisors (279736412838).

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

213881173338 is a wasteful number, since it uses less digits than its factorization.

213881173338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49440978.

The product of its digits is 580608, while the sum is 48.

The spelling of 213881173338 in words is "two hundred thirteen billion, eight hundred eighty-one million, one hundred seventy-three thousand, three hundred thirty-eight".