515043286712845 has 16 divisors (see below), whose sum is σ = 713899571744448. Its totient is φ = 352542998391040.

The previous prime is 515043286712831. The next prime is 515043286712893. The reversal of 515043286712845 is 548217682340515.

It is not a de Polignac number, because 515043286712845 - 2⁵ = 515043286712813 is a prime.

It is a Duffinian number.

It is a congruent 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, 275424216559 + ... + 275424218428.

It is an arithmetic number, because the mean of its divisors is an integer number (44618723234028).

Almost surely, 2^{515043286712845} is an apocalyptic number.

515043286712845 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

515043286712845 is a deficient number, since it is larger than the sum of its proper divisors (198856285031603).

515043286712845 is a wasteful number, since it uses less digits than its factorization.

515043286712845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550848435020.

The product of its (nonzero) digits is 64512000, while the sum is 61.

The spelling of 515043286712845 in words is "five hundred fifteen trillion, forty-three billion, two hundred eighty-six million, seven hundred twelve thousand, eight hundred forty-five".