513423520505432 has 8 divisors (see below), whose sum is σ = 962669100947700. Its totient is φ = 256711760252712.

The previous prime is 513423520505351. The next prime is 513423520505449. The reversal of 513423520505432 is 234505025324315.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×513423520505432² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32088970031582 + ... + 32088970031597.

Almost surely, 2^{513423520505432} is an apocalyptic number.

It is an amenable number.

513423520505432 is a deficient number, since it is larger than the sum of its proper divisors (449245580442268).

513423520505432 is a wasteful number, since it uses less digits than its factorization.

513423520505432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64177940063185 (or 64177940063181 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 44.

Adding to 513423520505432 its reverse (234505025324315), we get a palindrome (747928545829747).

The spelling of 513423520505432 in words is "five hundred thirteen trillion, four hundred twenty-three billion, five hundred twenty million, five hundred five thousand, four hundred thirty-two".