508305307828 has 6 divisors (see below), whose sum is σ = 889534288706. Its totient is φ = 254152653912.

The previous prime is 508305307819. The next prime is 508305307847. The reversal of 508305307828 is 828703503805.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 365079391524 + 143225916304 = 604218^2 + 378452^2 .

It is a super-2 number, since 2×508305307828² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63538163475 + ... + 63538163482.

Almost surely, 2^508305307828 is an apocalyptic number.

It is an amenable number.

508305307828 is a deficient number, since it is larger than the sum of its proper divisors (381228980878).

508305307828 is a wasteful number, since it uses less digits than its factorization.

508305307828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127076326961 (or 127076326959 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 508305307828 in words is "five hundred eight billion, three hundred five million, three hundred seven thousand, eight hundred twenty-eight".