509442688248 has 64 divisors (see below), whose sum is σ = 1408646134560. Its totient is φ = 152515063296.

The previous prime is 509442688247. The next prime is 509442688289. The reversal of 509442688248 is 842886244905.

It is a junction number, because it is equal to n+sod(n) for n = 509442688191 and 509442688200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509442688247) 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, 22053715 + ... + 22076802.

Almost surely, 2^509442688248 is an apocalyptic number.

It is an amenable number.

509442688248 is an abundant number, since it is smaller than the sum of its proper divisors (899203446312).

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

509442688248 is a wasteful number, since it uses less digits than its factorization.

509442688248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44130576 (or 44130572 counting only the distinct ones).

The product of its (nonzero) digits is 35389440, while the sum is 60.

The spelling of 509442688248 in words is "five hundred nine billion, four hundred forty-two million, six hundred eighty-eight thousand, two hundred forty-eight".