6738516515 has 4 divisors (see below), whose sum is σ = 8086219824. Its totient is φ = 5390813208.

The previous prime is 6738516509. The next prime is 6738516529. The reversal of 6738516515 is 5156158376.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6738516515 - 2⁸ = 6738516259 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6738516515.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 673851647 + ... + 673851656.

It is an arithmetic number, because the mean of its divisors is an integer number (2021554956).

Almost surely, 2^6738516515 is an apocalyptic number.

6738516515 is a deficient number, since it is larger than the sum of its proper divisors (1347703309).

6738516515 is a wasteful number, since it uses less digits than its factorization.

6738516515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347703308.

The product of its digits is 756000, while the sum is 47.

The square root of 6738516515 is about 82088.4676126921. The cubic root of 6738516515 is about 1888.8092417313.

The spelling of 6738516515 in words is "six billion, seven hundred thirty-eight million, five hundred sixteen thousand, five hundred fifteen".