6739496981 has 8 divisors (see below), whose sum is σ = 7740988800. Its totient is φ = 5747681808.

The previous prime is 6739496947. The next prime is 6739496989. The reversal of 6739496981 is 1896949376.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6739496981 - 2⁶ = 6739496917 is a prime.

It is a super-2 number, since 2×6739496981² = 90841639113816228722, which contains 22 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 (6739496989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2417666 + ... + 2420451.

It is an arithmetic number, because the mean of its divisors is an integer number (967623600).

Almost surely, 2^6739496981 is an apocalyptic number.

It is an amenable number.

6739496981 is a deficient number, since it is larger than the sum of its proper divisors (1001491819).

6739496981 is a wasteful number, since it uses less digits than its factorization.

6739496981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4838323.

The product of its digits is 17635968, while the sum is 62.

The square root of 6739496981 is about 82094.4394036527. The cubic root of 6739496981 is about 1888.9008456438.

The spelling of 6739496981 in words is "six billion, seven hundred thirty-nine million, four hundred ninety-six thousand, nine hundred eighty-one".