213740068442 has 24 divisors (see below), whose sum is σ = 337375567200. Its totient is φ = 101546458200.

The previous prime is 213740068403. The next prime is 213740068483. The reversal of 213740068442 is 244860047312.

It is a super-3 number, since 3×213740068442³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 213740068442.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 509192 + ... + 828707.

It is an arithmetic number, because the mean of its divisors is an integer number (14057315300).

Almost surely, 2^213740068442 is an apocalyptic number.

213740068442 is a deficient number, since it is larger than the sum of its proper divisors (123635498758).

213740068442 is a wasteful number, since it uses less digits than its factorization.

213740068442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338098 (or 1338075 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 41.

The spelling of 213740068442 in words is "two hundred thirteen billion, seven hundred forty million, sixty-eight thousand, four hundred forty-two".