6744381169831 has 4 divisors (see below), whose sum is σ = 6901227243592. Its totient is φ = 6587535096072.

The previous prime is 6744381169811. The next prime is 6744381169847. The reversal of 6744381169831 is 1389611834476.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6744381169831 - 2⁷ = 6744381169703 is a prime.

It is a super-2 number, since 2×6744381169831² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6744381169831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6744381169811) 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, 78423036816 + ... + 78423036901.

It is an arithmetic number, because the mean of its divisors is an integer number (1725306810898).

Almost surely, 2^{6744381169831} is an apocalyptic number.

6744381169831 is a deficient number, since it is larger than the sum of its proper divisors (156846073761).

6744381169831 is a wasteful number, since it uses less digits than its factorization.

6744381169831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156846073760.

The product of its digits is 20901888, while the sum is 61.

The spelling of 6744381169831 in words is "six trillion, seven hundred forty-four billion, three hundred eighty-one million, one hundred sixty-nine thousand, eight hundred thirty-one".