513534442040 has 16 divisors (see below), whose sum is σ = 1155452494680. Its totient is φ = 205413776800.

The previous prime is 513534442027. The next prime is 513534442067. The reversal of 513534442040 is 40244435315.

It is a super-2 number, since 2×513534442040² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6419180486 + ... + 6419180565.

Almost surely, 2^513534442040 is an apocalyptic number.

It is an amenable number.

513534442040 is an abundant number, since it is smaller than the sum of its proper divisors (641918052640).

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

513534442040 is a wasteful number, since it uses less digits than its factorization.

513534442040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12838361062 (or 12838361058 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 513534442040 its reverse (40244435315), we get a palindrome (553778877355).

The spelling of 513534442040 in words is "five hundred thirteen billion, five hundred thirty-four million, four hundred forty-two thousand, forty".