509642040147 has 32 divisors (see below), whose sum is σ = 693616089600. Its totient is φ = 332793136128.

The previous prime is 509642040139. The next prime is 509642040169. The reversal of 509642040147 is 741040246905.

It is not a de Polignac number, because 509642040147 - 2³ = 509642040139 is a prime.

It is a super-3 number, since 3×509642040147³ (a number of 36 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 509642040099 and 509642040108.

It is not an unprimeable number, because it can be changed into a prime (509642040847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34523554 + ... + 34538312.

It is an arithmetic number, because the mean of its divisors is an integer number (21675502800).

Almost surely, 2^509642040147 is an apocalyptic number.

509642040147 is a deficient number, since it is larger than the sum of its proper divisors (183974049453).

509642040147 is a wasteful number, since it uses less digits than its factorization.

509642040147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16075.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 509642040147 in words is "five hundred nine billion, six hundred forty-two million, forty thousand, one hundred forty-seven".