6987744375167 has 4 divisors (see below), whose sum is σ = 6987764744160. Its totient is φ = 6987724006176.

The previous prime is 6987744375109. The next prime is 6987744375179. The reversal of 6987744375167 is 7615734477896.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6987744375167 - 2¹⁸ = 6987744113023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6987744375094 and 6987744375103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6987744375467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9660938 + ... + 10359015.

It is an arithmetic number, because the mean of its divisors is an integer number (1746941186040).

Almost surely, 2^{6987744375167} is an apocalyptic number.

6987744375167 is a deficient number, since it is larger than the sum of its proper divisors (20368993).

6987744375167 is a wasteful number, since it uses less digits than its factorization.

6987744375167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20368992.

The product of its digits is 1493614080, while the sum is 74.

The spelling of 6987744375167 in words is "six trillion, nine hundred eighty-seven billion, seven hundred forty-four million, three hundred seventy-five thousand, one hundred sixty-seven".