6408730109 has 16 divisors (see below), whose sum is σ = 6508494000. Its totient is φ = 6310047744.

The previous prime is 6408730103. The next prime is 6408730117. The reversal of 6408730109 is 9010378046.

It can be written as a sum of positive squares in 8 ways, for example, as 546530884 + 5862199225 = 23378^2 + 76565^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6408730109 is a prime.

It is a super-2 number, since 2×6408730109² = 82143643220006303762, 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 (6408730103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14273117 + ... + 14273565.

It is an arithmetic number, because the mean of its divisors is an integer number (406780875).

Almost surely, 2^6408730109 is an apocalyptic number.

It is an amenable number.

6408730109 is a deficient number, since it is larger than the sum of its proper divisors (99763891).

6408730109 is a wasteful number, since it uses less digits than its factorization.

6408730109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 6408730109 is about 80054.5445868003. The cubic root of 6408730109 is about 1857.4793493934.

The spelling of 6408730109 in words is "six billion, four hundred eight million, seven hundred thirty thousand, one hundred nine".