779746647977 has 8 divisors (see below), whose sum is σ = 900669925152. Its totient is φ = 667162907200.

The previous prime is 779746647923. The next prime is 779746647983.

779746647977 is nontrivially palindromic in base 10.

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 779746647977 - 2¹⁴ = 779746631593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (779746647577) 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, 2084883899 + ... + 2084884272.

It is an arithmetic number, because the mean of its divisors is an integer number (112583740644).

Almost surely, 2^779746647977 is an apocalyptic number.

It is an amenable number.

779746647977 is a deficient number, since it is larger than the sum of its proper divisors (120923277175).

779746647977 is a wasteful number, since it uses less digits than its factorization.

779746647977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4169768199.

The product of its digits is 5489031744, while the sum is 80.

The spelling of 779746647977 in words is "seven hundred seventy-nine billion, seven hundred forty-six million, six hundred forty-seven thousand, nine hundred seventy-seven".