6739449377 has 4 divisors (see below), whose sum is σ = 6744898836. Its totient is φ = 6733999920.

The previous prime is 6739449361. The next prime is 6739449401. The reversal of 6739449377 is 7739449376.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6079164961 + 660284416 = 77969^2 + 25696^2 .

It is a cyclic number.

It is not a de Polignac number, because 6739449377 - 2⁴ = 6739449361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6739449317) 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, 2722874 + ... + 2725347.

It is an arithmetic number, because the mean of its divisors is an integer number (1686224709).

Almost surely, 2^6739449377 is an apocalyptic number.

It is an amenable number.

6739449377 is a deficient number, since it is larger than the sum of its proper divisors (5449459).

6739449377 is a wasteful number, since it uses less digits than its factorization.

6739449377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5449458.

The product of its digits is 24004512, while the sum is 59.

The square root of 6739449377 is about 82094.1494687654. The cubic root of 6739449377 is about 1888.8963982571.

Subtracting 6739449377 from its reverse (7739449376), we obtain a palindrome (999999999).

The spelling of 6739449377 in words is "six billion, seven hundred thirty-nine million, four hundred forty-nine thousand, three hundred seventy-seven".