513426629909 has 8 divisors (see below), whose sum is σ = 514993341720. Its totient is φ = 511860174336.

The previous prime is 513426629893. The next prime is 513426629917. The reversal of 513426629909 is 909926624315.

It can be written as a sum of positive squares in 4 ways, for example, as 2376075025 + 511050554884 = 48745^2 + 714878^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 513426629909 - 2⁴ = 513426629893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513426629929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4427897 + ... + 4542369.

It is an arithmetic number, because the mean of its divisors is an integer number (64374167715).

Almost surely, 2^513426629909 is an apocalyptic number.

It is an amenable number.

513426629909 is a deficient number, since it is larger than the sum of its proper divisors (1566711811).

513426629909 is a wasteful number, since it uses less digits than its factorization.

513426629909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128119.

The product of its (nonzero) digits is 6298560, while the sum is 56.

The spelling of 513426629909 in words is "five hundred thirteen billion, four hundred twenty-six million, six hundred twenty-nine thousand, nine hundred nine".