513513152442 has 32 divisors (see below), whose sum is σ = 1208266243200. Its totient is φ = 161102165184.

The previous prime is 513513152441. The next prime is 513513152447. The reversal of 513513152442 is 244251315315.

513513152442 is a `hidden beast` number, since 5 + 1 + 35 + 131 + 52 + 442 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 513513152397 and 513513152406.

It is not an unprimeable number, because it can be changed into a prime (513513152441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279690342 + ... + 279692177.

It is an arithmetic number, because the mean of its divisors is an integer number (37758320100).

Almost surely, 2^513513152442 is an apocalyptic number.

513513152442 is an abundant number, since it is smaller than the sum of its proper divisors (694753090758).

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

513513152442 is a wasteful number, since it uses less digits than its factorization.

513513152442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559382547 (or 559382541 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

Adding to 513513152442 its reverse (244251315315), we get a palindrome (757764467757).

The spelling of 513513152442 in words is "five hundred thirteen billion, five hundred thirteen million, one hundred fifty-two thousand, four hundred forty-two".