6541634408 has 16 divisors (see below), whose sum is σ = 12987068580. Its totient is φ = 3078416128.

The previous prime is 6541634399. The next prime is 6541634441. The reversal of 6541634408 is 8044361456.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6009040324 + 532594084 = 77518^2 + 23078^2 .

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 3 ways as a sum of consecutive naturals, for example, 24049991 + ... + 24050262.

Almost surely, 2^6541634408 is an apocalyptic number.

6541634408 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

6541634408 is a deficient number, since it is larger than the sum of its proper divisors (6445434172).

6541634408 is a wasteful number, since it uses less digits than its factorization.

6541634408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48100276 (or 48100272 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

The square root of 6541634408 is about 80880.3709684865. The cubic root of 6541634408 is about 1870.2317392274.

The spelling of 6541634408 in words is "six billion, five hundred forty-one million, six hundred thirty-four thousand, four hundred eight".