512872359490 has 8 divisors (see below), whose sum is σ = 923170247100. Its totient is φ = 205148943792.

The previous prime is 512872359479. The next prime is 512872359529. The reversal of 512872359490 is 94953278215.

It can be written as a sum of positive squares in 2 ways, for example, as 510708900321 + 2163459169 = 714639^2 + 46513^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25643617965 + ... + 25643617984.

Almost surely, 2^512872359490 is an apocalyptic number.

512872359490 is a deficient number, since it is larger than the sum of its proper divisors (410297887610).

512872359490 is a wasteful number, since it uses less digits than its factorization.

512872359490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51287235956.

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 512872359490 in words is "five hundred twelve billion, eight hundred seventy-two million, three hundred fifty-nine thousand, four hundred ninety".