515042018484 has 24 divisors (see below), whose sum is σ = 1373445382848. Its totient is φ = 147154862400.

The previous prime is 515042018471. The next prime is 515042018501. The reversal of 515042018484 is 484810240515.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3065726217 + ... + 3065726384.

It is an arithmetic number, because the mean of its divisors is an integer number (57226890952).

Almost surely, 2^515042018484 is an apocalyptic number.

It is an amenable number.

515042018484 is an abundant number, since it is smaller than the sum of its proper divisors (858403364364).

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

515042018484 is a wasteful number, since it uses less digits than its factorization.

515042018484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6131452615 (or 6131452613 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 42.

Adding to 515042018484 its reverse (484810240515), we get a palindrome (999852258999).

The spelling of 515042018484 in words is "five hundred fifteen billion, forty-two million, eighteen thousand, four hundred eighty-four".