68164027213 has 8 divisors (see below), whose sum is σ = 71844975000. Its totient is φ = 64571777088.

The previous prime is 68164027193. The next prime is 68164027229. The reversal of 68164027213 is 31272046186.

It can be written as a sum of positive squares in 4 ways, for example, as 18042668329 + 50121358884 = 134323^2 + 223878^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68164027213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68164027273) 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, 22172838 + ... + 22175911.

It is an arithmetic number, because the mean of its divisors is an integer number (8980621875).

Almost surely, 2^68164027213 is an apocalyptic number.

It is an amenable number.

68164027213 is a deficient number, since it is larger than the sum of its proper divisors (3680947787).

68164027213 is a wasteful number, since it uses less digits than its factorization.

68164027213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44348831.

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 68164027213 in words is "sixty-eight billion, one hundred sixty-four million, twenty-seven thousand, two hundred thirteen".