213289643390 has 16 divisors (see below), whose sum is σ = 385021425600. Its totient is φ = 85071397920.

The previous prime is 213289643363. The next prime is 213289643429. The reversal of 213289643390 is 93346982312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30553766 + ... + 30560745.

It is an arithmetic number, because the mean of its divisors is an integer number (24063839100).

Almost surely, 2^213289643390 is an apocalyptic number.

213289643390 is a deficient number, since it is larger than the sum of its proper divisors (171731782210).

213289643390 is a wasteful number, since it uses less digits than its factorization.

213289643390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61114867.

The product of its (nonzero) digits is 1679616, while the sum is 50.

The spelling of 213289643390 in words is "two hundred thirteen billion, two hundred eighty-nine million, six hundred forty-three thousand, three hundred ninety".