68442830471 has 4 divisors (see below), whose sum is σ = 70650663744. Its totient is φ = 66234997200.

The previous prime is 68442830459. The next prime is 68442830479. The reversal of 68442830471 is 17403824486.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68442830471 is a prime.

It is a super-3 number, since 3×68442830471³ (a number of 33 digits) contains 333 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 (68442830479) 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, 1103916590 + ... + 1103916651.

It is an arithmetic number, because the mean of its divisors is an integer number (17662665936).

Almost surely, 2^68442830471 is an apocalyptic number.

68442830471 is a deficient number, since it is larger than the sum of its proper divisors (2207833273).

68442830471 is a wasteful number, since it uses less digits than its factorization.

68442830471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2207833272.

The product of its (nonzero) digits is 1032192, while the sum is 47.

The spelling of 68442830471 in words is "sixty-eight billion, four hundred forty-two million, eight hundred thirty thousand, four hundred seventy-one".