510531640212 has 48 divisors (see below), whose sum is σ = 1300490380224. Its totient is φ = 154592832000.

The previous prime is 510531640207. The next prime is 510531640217. The reversal of 510531640212 is 212046135015.

It is an interprime number because it is at equal distance from previous prime (510531640207) and next prime (510531640217).

It is a self number, because there is not a number n which added to its sum of digits gives 510531640212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (510531640217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1241239 + ... + 1600542.

It is an arithmetic number, because the mean of its divisors is an integer number (27093549588).

Almost surely, 2^510531640212 is an apocalyptic number.

It is an amenable number.

510531640212 is an abundant number, since it is smaller than the sum of its proper divisors (789958740012).

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

510531640212 is a wasteful number, since it uses less digits than its factorization.

510531640212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2843160 (or 2843158 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 510531640212 its reverse (212046135015), we get a palindrome (722577775227).

The spelling of 510531640212 in words is "five hundred ten billion, five hundred thirty-one million, six hundred forty thousand, two hundred twelve".