515384808483515 has 16 divisors (see below), whose sum is σ = 630499582976736. Its totient is φ = 404323479014400.

The previous prime is 515384808483509. The next prime is 515384808483533.

515384808483515 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-515384808483515 is a prime.

It is a super-2 number, since 2×515384808483515² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2552446262 + ... + 2552648171.

It is an arithmetic number, because the mean of its divisors is an integer number (39406223936046).

Almost surely, 2^{515384808483515} is an apocalyptic number.

515384808483515 is a deficient number, since it is larger than the sum of its proper divisors (115114774493221).

515384808483515 is a wasteful number, since it uses less digits than its factorization.

515384808483515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5105094830.

The product of its (nonzero) digits is 368640000, while the sum is 68.

The spelling of 515384808483515 in words is "five hundred fifteen trillion, three hundred eighty-four billion, eight hundred eight million, four hundred eighty-three thousand, five hundred fifteen".