511993417080 has 64 divisors (see below), whose sum is σ = 1585528012800. Its totient is φ = 132127332480.

The previous prime is 511993417063. The next prime is 511993417087. The reversal of 511993417080 is 80714399115.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511993417087) by changing a digit.

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, 68812600 + ... + 68820039.

It is an arithmetic number, because the mean of its divisors is an integer number (24773875200).

Almost surely, 2^511993417080 is an apocalyptic number.

It is an amenable number.

511993417080 is an abundant number, since it is smaller than the sum of its proper divisors (1073534595720).

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

511993417080 is a wasteful number, since it uses less digits than its factorization.

511993417080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137632684 (or 137632680 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 48.

The spelling of 511993417080 in words is "five hundred eleven billion, nine hundred ninety-three million, four hundred seventeen thousand, eighty".