512455112243540 has 48 divisors (see below), whose sum is σ = 1076710666422720. Its totient is φ = 204876368893440.

The previous prime is 512455112243533. The next prime is 512455112243567. The reversal of 512455112243540 is 45342211554215.

It is a super-2 number, since 2×512455112243540² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 512455112243491 and 512455112243500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 327868700 + ... + 329427980.

It is an arithmetic number, because the mean of its divisors is an integer number (22431472217140).

Almost surely, 2^{512455112243540} is an apocalyptic number.

It is an amenable number.

512455112243540 is an abundant number, since it is smaller than the sum of its proper divisors (564255554179180).

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

512455112243540 is a wasteful number, since it uses less digits than its factorization.

512455112243540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567752 (or 1567750 counting only the distinct ones).

The product of its (nonzero) digits is 960000, while the sum is 44.

Adding to 512455112243540 its reverse (45342211554215), we get a palindrome (557797323797755).

The spelling of 512455112243540 in words is "five hundred twelve trillion, four hundred fifty-five billion, one hundred twelve million, two hundred forty-three thousand, five hundred forty".