6509242143 has 12 divisors (see below), whose sum is σ = 9705537088. Its totient is φ = 4199510880.

The previous prime is 6509242073. The next prime is 6509242151. The reversal of 6509242143 is 3412429056.

It is a happy number.

6509242143 is a `hidden beast` number, since 6 + 509 + 2 + 4 + 2 + 143 = 666.

It is not a de Polignac number, because 6509242143 - 2¹⁰ = 6509241119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6509242098 and 6509242107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6509242153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11665030 + ... + 11665587.

Almost surely, 2^6509242143 is an apocalyptic number.

6509242143 is a deficient number, since it is larger than the sum of its proper divisors (3196294945).

6509242143 is a wasteful number, since it uses less digits than its factorization.

6509242143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23330654 (or 23330651 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 6509242143 is about 80679.8744607352. The cubic root of 6509242143 is about 1867.1396826390.

The spelling of 6509242143 in words is "six billion, five hundred nine million, two hundred forty-two thousand, one hundred forty-three".