512420463146 has 8 divisors (see below), whose sum is σ = 771055398180. Its totient is φ = 255401997088.

The previous prime is 512420463109. The next prime is 512420463161. The reversal of 512420463146 is 641364024215.

It can be written as a sum of positive squares in 2 ways, for example, as 468662098921 + 43758364225 = 684589^2 + 209185^2 .

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

It is a super-2 number, since 2×512420463146² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404116451 + ... + 404117718.

Almost surely, 2^512420463146 is an apocalyptic number.

512420463146 is a deficient number, since it is larger than the sum of its proper divisors (258634935034).

512420463146 is a wasteful number, since it uses less digits than its factorization.

512420463146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808234488.

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 512420463146 in words is "five hundred twelve billion, four hundred twenty million, four hundred sixty-three thousand, one hundred forty-six".