512311680240 has 160 divisors (see below), whose sum is σ = 1657764182016. Its totient is φ = 130633451520.

The previous prime is 512311680229. The next prime is 512311680253. The reversal of 512311680240 is 42086113215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18793020 + ... + 18820260.

Almost surely, 2^512311680240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 512311680240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (828882091008).

512311680240 is an abundant number, since it is smaller than the sum of its proper divisors (1145452501776).

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

512311680240 is a wasteful number, since it uses less digits than its factorization.

512311680240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30687 (or 30681 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

Adding to 512311680240 its reverse (42086113215), we get a palindrome (554397793455).

The spelling of 512311680240 in words is "five hundred twelve billion, three hundred eleven million, six hundred eighty thousand, two hundred forty".