68242311733 has 4 divisors (see below), whose sum is σ = 68329024480. Its totient is φ = 68155598988.

The previous prime is 68242311721. The next prime is 68242311743. The reversal of 68242311733 is 33711324286.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33711324286 = 2 ⋅16855662143.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68242311733 is a prime.

It is a super-2 number, since 2×68242311733² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68242311743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43355193 + ... + 43356766.

It is an arithmetic number, because the mean of its divisors is an integer number (17082256120).

Almost surely, 2^68242311733 is an apocalyptic number.

It is an amenable number.

68242311733 is a deficient number, since it is larger than the sum of its proper divisors (86712747).

68242311733 is an equidigital number, since it uses as much as digits as its factorization.

68242311733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86712746.

The product of its digits is 145152, while the sum is 40.

The spelling of 68242311733 in words is "sixty-eight billion, two hundred forty-two million, three hundred eleven thousand, seven hundred thirty-three".