510740344921 has 9 divisors (see below), whose sum is σ = 512073797949. Its totient is φ = 509410360800.

The previous prime is 510740344909. The next prime is 510740344931. The reversal of 510740344921 is 129443047015.

The square root of 510740344921 is 714661.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 79643048521 + 431097296400 = 282211^2 + 656580^2 .

It is not a de Polignac number, because 510740344921 - 2⁵ = 510740344889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (510740344901) 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 8 ways as a sum of consecutive naturals, for example, 386630941 + ... + 386632261.

It is an arithmetic number, because the mean of its divisors is an integer number (56897088661).

Almost surely, 2^510740344921 is an apocalyptic number.

510740344921 is the 714661-st square number.

510740344921 is the 357331-st centered octagonal number.

It is an amenable number.

510740344921 is a deficient number, since it is larger than the sum of its proper divisors (1333453028).

510740344921 is an frugal number, since it uses more digits than its factorization.

510740344921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3724 (or 1862 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 510740344921 in words is "five hundred ten billion, seven hundred forty million, three hundred forty-four thousand, nine hundred twenty-one".