7171787242 has 16 divisors (see below), whose sum is σ = 10808513280. Its totient is φ = 3568966128.

The previous prime is 7171787221. The next prime is 7171787257. The reversal of 7171787242 is 2427871717.

It is a junction number, because it is equal to n+sod(n) for n = 7171787192 and 7171787201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1377388 + ... + 1382584.

It is an arithmetic number, because the mean of its divisors is an integer number (675532080).

Almost surely, 2^7171787242 is an apocalyptic number.

7171787242 is a deficient number, since it is larger than the sum of its proper divisors (3636726038).

7171787242 is a wasteful number, since it uses less digits than its factorization.

7171787242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8325.

The product of its digits is 307328, while the sum is 46.

The square root of 7171787242 is about 84686.4052962457. The cubic root of 7171787242 is about 1928.4533271479.

The spelling of 7171787242 in words is "seven billion, one hundred seventy-one million, seven hundred eighty-seven thousand, two hundred forty-two".