7986969681247 has 8 divisors (see below), whose sum is σ = 8196897269232. Its totient is φ = 7777762257600.

The previous prime is 7986969681209. The next prime is 7986969681253. The reversal of 7986969681247 is 7421869696897.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7986969681247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7986969621247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180018613 + ... + 180062974.

It is an arithmetic number, because the mean of its divisors is an integer number (1024612158654).

Almost surely, 2^{7986969681247} is an apocalyptic number.

7986969681247 is a deficient number, since it is larger than the sum of its proper divisors (209927587985).

7986969681247 is a wasteful number, since it uses less digits than its factorization.

7986969681247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360082169.

The product of its digits is 3950456832, while the sum is 82.

The spelling of 7986969681247 in words is "seven trillion, nine hundred eighty-six billion, nine hundred sixty-nine million, six hundred eighty-one thousand, two hundred forty-seven".