509091476452 has 48 divisors (see below), whose sum is σ = 992745155584. Its totient is φ = 226845360000.

The previous prime is 509091476323. The next prime is 509091476459. The reversal of 509091476452 is 254674190905.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a self number, because there is not a number n which added to its sum of digits gives 509091476452.

It is not an unprimeable number, because it can be changed into a prime (509091476459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303577 + ... + 1053727.

Almost surely, 2^509091476452 is an apocalyptic number.

509091476452 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

509091476452 is a deficient number, since it is larger than the sum of its proper divisors (483653679132).

509091476452 is a wasteful number, since it uses less digits than its factorization.

509091476452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750620 (or 750618 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 52.

The spelling of 509091476452 in words is "five hundred nine billion, ninety-one million, four hundred seventy-six thousand, four hundred fifty-two".