6438154613 has 8 divisors (see below), whose sum is σ = 7024068576. Its totient is φ = 5852345200.

The previous prime is 6438154607. The next prime is 6438154669. The reversal of 6438154613 is 3164518346.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6438154613 - 2²⁰ = 6437106037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6438154673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160778 + ... + 196788.

It is an arithmetic number, because the mean of its divisors is an integer number (878008572).

Almost surely, 2^6438154613 is an apocalyptic number.

It is an amenable number.

6438154613 is a deficient number, since it is larger than the sum of its proper divisors (585913963).

6438154613 is a wasteful number, since it uses less digits than its factorization.

6438154613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52275.

The product of its digits is 207360, while the sum is 41.

The square root of 6438154613 is about 80238.1119730518. Note that the first 3 decimals coincide. The cubic root of 6438154613 is about 1860.3177679037.

It can be divided in two parts, 6438 and 154613, that added together give a 5-th power (161051 = 11⁵).

The spelling of 6438154613 in words is "six billion, four hundred thirty-eight million, one hundred fifty-four thousand, six hundred thirteen".