509009154464 has 24 divisors (see below), whose sum is σ = 1034437961088. Its totient is φ = 246294751680.

The previous prime is 509009154463. The next prime is 509009154523. The reversal of 509009154464 is 464451900905.

It is a super-2 number, since 2×509009154464² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (509009154463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256556042 + ... + 256558025.

It is an arithmetic number, because the mean of its divisors is an integer number (43101581712).

Almost surely, 2^509009154464 is an apocalyptic number.

It is an amenable number.

509009154464 is an abundant number, since it is smaller than the sum of its proper divisors (525428806624).

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

509009154464 is a wasteful number, since it uses less digits than its factorization.

509009154464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513114108 (or 513114100 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 47.

The spelling of 509009154464 in words is "five hundred nine billion, nine million, one hundred fifty-four thousand, four hundred sixty-four".