513423402040444 has 12 divisors (see below), whose sum is σ = 1026846804080944. Its totient is φ = 220038600874464.

The previous prime is 513423402040411. The next prime is 513423402040447. The reversal of 513423402040444 is 444040204324315.

513423402040444 is an admirable number.

It is a super-2 number, since 2×513423402040444² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 513423402040397 and 513423402040406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513423402040447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9168275036409 + ... + 9168275036464.

Almost surely, 2^{513423402040444} is an apocalyptic number.

It is an amenable number.

513423402040444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

513423402040444 is a wasteful number, since it uses less digits than its factorization.

513423402040444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18336550072884 (or 18336550072882 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 40.

Adding to 513423402040444 its reverse (444040204324315), we get a palindrome (957463606364759).

The spelling of 513423402040444 in words is "five hundred thirteen trillion, four hundred twenty-three billion, four hundred two million, forty thousand, four hundred forty-four".