513423205404 has 24 divisors (see below), whose sum is σ = 1236632237568. Its totient is φ = 165620388720.

The previous prime is 513423205381. The next prime is 513423205417. The reversal of 513423205404 is 404502324315.

It is a super-3 number, since 3×513423205404³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 690084582 + ... + 690085325.

It is an arithmetic number, because the mean of its divisors is an integer number (51526343232).

Almost surely, 2^513423205404 is an apocalyptic number.

It is an amenable number.

513423205404 is an abundant number, since it is smaller than the sum of its proper divisors (723209032164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

513423205404 is a wasteful number, since it uses less digits than its factorization.

513423205404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380169945 (or 1380169943 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 513423205404 its reverse (404502324315), we get a palindrome (917925529719).

The spelling of 513423205404 in words is "five hundred thirteen billion, four hundred twenty-three million, two hundred five thousand, four hundred four".