213947034065 has 8 divisors (see below), whose sum is σ = 256801182720. Its totient is φ = 171114466032.

The previous prime is 213947034061. The next prime is 213947034073. The reversal of 213947034065 is 560430749312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213947034065 - 2² = 213947034061 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (213947034061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5373335 + ... + 5413004.

It is an arithmetic number, because the mean of its divisors is an integer number (32100147840).

Almost surely, 2^213947034065 is an apocalyptic number.

It is an amenable number.

213947034065 is a deficient number, since it is larger than the sum of its proper divisors (42854148655).

213947034065 is a wasteful number, since it uses less digits than its factorization.

213947034065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10790311.

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 213947034065 in words is "two hundred thirteen billion, nine hundred forty-seven million, thirty-four thousand, sixty-five".