6731281279734 has 64 divisors (see below), whose sum is σ = 14823922164480. Its totient is φ = 2020693288320.

The previous prime is 6731281279721. The next prime is 6731281279747. The reversal of 6731281279734 is 4379721821376.

It is an interprime number because it is at equal distance from previous prime (6731281279721) and next prime (6731281279747).

It is a super-2 number, since 2×6731281279734² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39936124 + ... + 40104320.

It is an arithmetic number, because the mean of its divisors is an integer number (231623783820).

Almost surely, 2^{6731281279734} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6731281279734, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7411961082240).

6731281279734 is an abundant number, since it is smaller than the sum of its proper divisors (8092640884746).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6731281279734 is a wasteful number, since it uses less digits than its factorization.

6731281279734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173885.

The product of its digits is 21337344, while the sum is 60.

The spelling of 6731281279734 in words is "six trillion, seven hundred thirty-one billion, two hundred eighty-one million, two hundred seventy-nine thousand, seven hundred thirty-four".