509246172342 has 40 divisors (see below), whose sum is σ = 1177897968192. Its totient is φ = 164272957200.

The previous prime is 509246172341. The next prime is 509246172353. The reversal of 509246172342 is 243271642905.

509246172342 is a `hidden beast` number, since 5 + 0 + 9 + 2 + 4 + 617 + 23 + 4 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509246172341) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 50696509 + ... + 50706552.

Almost surely, 2^509246172342 is an apocalyptic number.

509246172342 is an abundant number, since it is smaller than the sum of its proper divisors (668651795850).

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

509246172342 is a wasteful number, since it uses less digits than its factorization.

509246172342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101403106 (or 101403097 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 509246172342 in words is "five hundred nine billion, two hundred forty-six million, one hundred seventy-two thousand, three hundred forty-two".