513783864650 has 96 divisors (see below), whose sum is σ = 1102960834560. Its totient is φ = 174419640000.

The previous prime is 513783864577. The next prime is 513783864673. The reversal of 513783864650 is 56468387315.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16420721 + ... + 16451979.

It is an arithmetic number, because the mean of its divisors is an integer number (11489175360).

Almost surely, 2^513783864650 is an apocalyptic number.

513783864650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

513783864650 is an abundant number, since it is smaller than the sum of its proper divisors (589176969910).

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

513783864650 is a wasteful number, since it uses less digits than its factorization.

513783864650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31740 (or 31735 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 56.

The spelling of 513783864650 in words is "five hundred thirteen billion, seven hundred eighty-three million, eight hundred sixty-four thousand, six hundred fifty".