1513731065505 has 32 divisors (see below), whose sum is σ = 2496384468864. Its totient is φ = 782792403456.

The previous prime is 1513731065471. The next prime is 1513731065543. The reversal of 1513731065505 is 5055601373151.

It is not a de Polignac number, because 1513731065505 - 2¹⁴ = 1513731049121 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 8476854 + ... + 8653583.

It is an arithmetic number, because the mean of its divisors is an integer number (78012014652).

Almost surely, 2^{1513731065505} is an apocalyptic number.

1513731065505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1513731065505 is a deficient number, since it is larger than the sum of its proper divisors (982653403359).

1513731065505 is a wasteful number, since it uses less digits than its factorization.

1513731065505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17130625.

The product of its (nonzero) digits is 236250, while the sum is 42.

The spelling of 1513731065505 in words is "one trillion, five hundred thirteen billion, seven hundred thirty-one million, sixty-five thousand, five hundred five".