508256856240 has 80 divisors (see below), whose sum is σ = 1800681439488. Its totient is φ = 116172995328.

The previous prime is 508256856197. The next prime is 508256856277. The reversal of 508256856240 is 42658652805.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151265242 + ... + 151268601.

Almost surely, 2^508256856240 is an apocalyptic number.

It is an amenable number.

508256856240 is an abundant number, since it is smaller than the sum of its proper divisors (1292424583248).

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

508256856240 is a wasteful number, since it uses less digits than its factorization.

508256856240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302533866 (or 302533860 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 51.

The spelling of 508256856240 in words is "five hundred eight billion, two hundred fifty-six million, eight hundred fifty-six thousand, two hundred forty".