3143468839681 has 4 divisors (see below), whose sum is σ = 3280141397952. Its totient is φ = 3006796281412.

The previous prime is 3143468839663. The next prime is 3143468839697. The reversal of 3143468839681 is 1869388643413.

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.

It is a cyclic number.

It is not a de Polignac number, because 3143468839681 - 2⁵ = 3143468839649 is a prime.

It is a super-2 number, since 2×3143468839681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3143468839481) 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, 68336279101 + ... + 68336279146.

It is an arithmetic number, because the mean of its divisors is an integer number (820035349488).

Almost surely, 2^{3143468839681} is an apocalyptic number.

It is an amenable number.

3143468839681 is a deficient number, since it is larger than the sum of its proper divisors (136672558271).

3143468839681 is a wasteful number, since it uses less digits than its factorization.

3143468839681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136672558270.

The product of its digits is 71663616, while the sum is 64.

The spelling of 3143468839681 in words is "three trillion, one hundred forty-three billion, four hundred sixty-eight million, eight hundred thirty-nine thousand, six hundred eighty-one".