6740231983 has 4 divisors (see below), whose sum is σ = 6896981608. Its totient is φ = 6583482360.

The previous prime is 6740231963. The next prime is 6740231987. The reversal of 6740231983 is 3891320476.

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 6740231983 - 2¹⁷ = 6740100911 is a prime.

It is a super-2 number, since 2×6740231983² = 90861454369312224578, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 156749581 = 6740231983 / (6 + 7 + 4 + 0 + 2 + 3 + 1 + 9 + 8 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6740231987) 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, 78374748 + ... + 78374833.

It is an arithmetic number, because the mean of its divisors is an integer number (1724245402).

Almost surely, 2^6740231983 is an apocalyptic number.

6740231983 is a deficient number, since it is larger than the sum of its proper divisors (156749625).

6740231983 is a wasteful number, since it uses less digits than its factorization.

6740231983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156749624.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 6740231983 is about 82098.9158454605. The cubic root of 6740231983 is about 1888.9695102853.

The spelling of 6740231983 in words is "six billion, seven hundred forty million, two hundred thirty-one thousand, nine hundred eighty-three".