6739449401 has 2 divisors, whose sum is σ = 6739449402. Its totient is φ = 6739449400.

The previous prime is 6739449361. The next prime is 6739449467. The reversal of 6739449401 is 1049449376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6682899001 + 56550400 = 81749^2 + 7520^2 .

It is a cyclic number.

It is not a de Polignac number, because 6739449401 - 2⁶ = 6739449337 is a prime.

It is not a weakly prime, because it can be changed into another prime (6739349401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3369724700 + 3369724701.

It is an arithmetic number, because the mean of its divisors is an integer number (3369724701).

Almost surely, 2^6739449401 is an apocalyptic number.

It is an amenable number.

6739449401 is a deficient number, since it is larger than the sum of its proper divisors (1).

6739449401 is an equidigital number, since it uses as much as digits as its factorization.

6739449401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 47.

The square root of 6739449401 is about 82094.1496149391. The cubic root of 6739449401 is about 1888.8964004993.

The spelling of 6739449401 in words is "six billion, seven hundred thirty-nine million, four hundred forty-nine thousand, four hundred one".