6538495405 has 16 divisors (see below), whose sum is σ = 8453539584. Its totient is φ = 4826260800.

The previous prime is 6538495391. The next prime is 6538495433. The reversal of 6538495405 is 5045948356.

It is not a de Polignac number, because 6538495405 - 2⁵ = 6538495373 is a prime.

It is a super-2 number, since 2×6538495405² = 85503844322412228050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131422 + ... + 174208.

It is an arithmetic number, because the mean of its divisors is an integer number (528346224).

Almost surely, 2^6538495405 is an apocalyptic number.

6538495405 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6538495405 is a deficient number, since it is larger than the sum of its proper divisors (1915044179).

6538495405 is a wasteful number, since it uses less digits than its factorization.

6538495405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45156.

The product of its (nonzero) digits is 2592000, while the sum is 49.

The square root of 6538495405 is about 80860.9634186979. The cubic root of 6538495405 is about 1869.9325478258.

The spelling of 6538495405 in words is "six billion, five hundred thirty-eight million, four hundred ninety-five thousand, four hundred five".