6739449361 has 2 divisors, whose sum is σ = 6739449362. Its totient is φ = 6739449360.

The previous prime is 6739449337. The next prime is 6739449401. The reversal of 6739449361 is 1639449376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6086340225 + 653109136 = 78015^2 + 25556^2 .

It is a cyclic number.

It is not a de Polignac number, because 6739449361 - 2⁵ = 6739449329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6739449299 and 6739449308.

It is not a weakly prime, because it can be changed into another prime (6739441361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3369724680 + 3369724681.

It is an arithmetic number, because the mean of its divisors is an integer number (3369724681).

Almost surely, 2^6739449361 is an apocalyptic number.

It is an amenable number.

6739449361 is a deficient number, since it is larger than the sum of its proper divisors (1).

6739449361 is an equidigital number, since it uses as much as digits as its factorization.

6739449361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2939328, while the sum is 52.

The square root of 6739449361 is about 82094.1493713163. The cubic root of 6739449361 is about 1888.8963967623.

The spelling of 6739449361 in words is "six billion, seven hundred thirty-nine million, four hundred forty-nine thousand, three hundred sixty-one".