514924021809 has 20 divisors (see below), whose sum is σ = 773193043876. Its totient is φ = 341504004096.

The previous prime is 514924021783. The next prime is 514924021823. The reversal of 514924021809 is 908120429415.

It is a happy number.

514924021809 is a `hidden beast` number, since 514 + 92 + 40 + 2 + 1 + 8 + 0 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 156937199409 + 357986822400 = 396153^2 + 598320^2 .

It is not a de Polignac number, because 514924021809 - 2⁸ = 514924021553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (514924011809) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16453504 + ... + 16484769.

Almost surely, 2^514924021809 is an apocalyptic number.

It is an amenable number.

514924021809 is a deficient number, since it is larger than the sum of its proper divisors (258269022067).

514924021809 is a wasteful number, since it uses less digits than its factorization.

514924021809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32938478 (or 32938469 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 514924021809 in words is "five hundred fourteen billion, nine hundred twenty-four million, twenty-one thousand, eight hundred nine".