8077407661439 has 16 divisors (see below), whose sum is σ = 8165950087680. Its totient is φ = 7989307634880.

The previous prime is 8077407661331. The next prime is 8077407661471. The reversal of 8077407661439 is 9341667047708.

It is a cyclic number.

It is not a de Polignac number, because 8077407661439 - 2²⁴ = 8077390884223 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 (8077404661439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60475859 + ... + 60609275.

It is an arithmetic number, because the mean of its divisors is an integer number (510371880480).

Almost surely, 2^{8077407661439} is an apocalyptic number.

8077407661439 is a deficient number, since it is larger than the sum of its proper divisors (88542426241).

8077407661439 is a wasteful number, since it uses less digits than its factorization.

8077407661439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135070.

The product of its (nonzero) digits is 42674688, while the sum is 62.

The spelling of 8077407661439 in words is "eight trillion, seventy-seven billion, four hundred seven million, six hundred sixty-one thousand, four hundred thirty-nine".