7639121113247 has 8 divisors (see below), whose sum is σ = 8229102421680. Its totient is φ = 7049476463040.

The previous prime is 7639121113241. The next prime is 7639121113291. The reversal of 7639121113247 is 7423111219367.

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

It is a cyclic number.

It is not a de Polignac number, because 7639121113247 - 2¹⁶ = 7639121047711 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 (7639121113241) 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, 84117422 + ... + 84208187.

It is an arithmetic number, because the mean of its divisors is an integer number (1028637802710).

Almost surely, 2^{7639121113247} is an apocalyptic number.

7639121113247 is a deficient number, since it is larger than the sum of its proper divisors (589981308433).

7639121113247 is a wasteful number, since it uses less digits than its factorization.

7639121113247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168329113.

The product of its digits is 381024, while the sum is 47.

The spelling of 7639121113247 in words is "seven trillion, six hundred thirty-nine billion, one hundred twenty-one million, one hundred thirteen thousand, two hundred forty-seven".