512140310420 has 36 divisors (see below), whose sum is σ = 1135078859124. Its totient is φ = 194074220160.

The previous prime is 512140310419. The next prime is 512140310431. The reversal of 512140310420 is 24013041215.

It can be written as a sum of positive squares in 2 ways, for example, as 102934455556 + 409205854864 = 320834^2 + 639692^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35459561 + ... + 35474000.

It is an arithmetic number, because the mean of its divisors is an integer number (31529968309).

Almost surely, 2^512140310420 is an apocalyptic number.

It is an amenable number.

512140310420 is an abundant number, since it is smaller than the sum of its proper divisors (622938548704).

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

512140310420 is a wasteful number, since it uses less digits than its factorization.

512140310420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70933608 (or 70933587 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 512140310420 its reverse (24013041215), we get a palindrome (536153351635).

The spelling of 512140310420 in words is "five hundred twelve billion, one hundred forty million, three hundred ten thousand, four hundred twenty".