7779602868257 has 8 divisors (see below), whose sum is σ = 8504124304032. Its totient is φ = 7057962234400.

The previous prime is 7779602868239. The next prime is 7779602868269. The reversal of 7779602868257 is 7528682069777.

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

It is not a de Polignac number, because 7779602868257 - 2¹⁰ = 7779602867233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7779602868157) by changing a digit.

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, 720194828 + ... + 720205629.

It is an arithmetic number, because the mean of its divisors is an integer number (1063015538004).

Almost surely, 2^{7779602868257} is an apocalyptic number.

It is an amenable number.

7779602868257 is a deficient number, since it is larger than the sum of its proper divisors (724521435775).

7779602868257 is a wasteful number, since it uses less digits than its factorization.

7779602868257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440400959.

The product of its (nonzero) digits is 995742720, while the sum is 74.

The spelling of 7779602868257 in words is "seven trillion, seven hundred seventy-nine billion, six hundred two million, eight hundred sixty-eight thousand, two hundred fifty-seven".