507780220728 has 64 divisors (see below), whose sum is σ = 1389581827200. Its totient is φ = 153347607680.

The previous prime is 507780220709. The next prime is 507780220757. The reversal of 507780220728 is 827022087705.

It is a congruent number.

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, 3204918 + ... + 3359621.

It is an arithmetic number, because the mean of its divisors is an integer number (21712216050).

Almost surely, 2^507780220728 is an apocalyptic number.

It is an amenable number.

507780220728 is an abundant number, since it is smaller than the sum of its proper divisors (881801606472).

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

507780220728 is a wasteful number, since it uses less digits than its factorization.

507780220728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6564852 (or 6564848 counting only the distinct ones).

The product of its (nonzero) digits is 878080, while the sum is 48.

The spelling of 507780220728 in words is "five hundred seven billion, seven hundred eighty million, two hundred twenty thousand, seven hundred twenty-eight".