509949887934 has 48 divisors (see below), whose sum is σ = 1122285628800. Its totient is φ = 154035188208.

The previous prime is 509949887933. The next prime is 509949887959. The reversal of 509949887934 is 439788949905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509949887933) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4167714 + ... + 4288325.

It is an arithmetic number, because the mean of its divisors is an integer number (23380950600).

Almost surely, 2^509949887934 is an apocalyptic number.

509949887934 is an abundant number, since it is smaller than the sum of its proper divisors (612335740866).

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

509949887934 is a wasteful number, since it uses less digits than its factorization.

509949887934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8456109 (or 8456086 counting only the distinct ones).

The product of its (nonzero) digits is 705438720, while the sum is 75.

The spelling of 509949887934 in words is "five hundred nine billion, nine hundred forty-nine million, eight hundred eighty-seven thousand, nine hundred thirty-four".