511489880860 has 48 divisors (see below), whose sum is σ = 1236536167104. Its totient is φ = 174087894528.

The previous prime is 511489880809. The next prime is 511489880873. The reversal of 511489880860 is 68088984115.

It is a junction number, because it is equal to n+sod(n) for n = 511489880795 and 511489880804.

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, 13314759 + ... + 13353118.

It is an arithmetic number, because the mean of its divisors is an integer number (25761170148).

Almost surely, 2^511489880860 is an apocalyptic number.

It is an amenable number.

511489880860 is an abundant number, since it is smaller than the sum of its proper divisors (725046286244).

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

511489880860 is a wasteful number, since it uses less digits than its factorization.

511489880860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26668030 (or 26668028 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 58.

The spelling of 511489880860 in words is "five hundred eleven billion, four hundred eighty-nine million, eight hundred eighty thousand, eight hundred sixty".