777990099777 has 8 divisors (see below), whose sum is σ = 1131621963360. Its totient is φ = 471509151360.

The previous prime is 777990099773. The next prime is 777990099791.

777990099777 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 777990099777 - 2² = 777990099773 is a prime.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (777990099773) 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, 11787728752 + ... + 11787728817.

It is an arithmetic number, because the mean of its divisors is an integer number (141452745420).

Almost surely, 2^777990099777 is an apocalyptic number.

It is an amenable number.

777990099777 is a deficient number, since it is larger than the sum of its proper divisors (353631863583).

777990099777 is a wasteful number, since it uses less digits than its factorization.

777990099777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23575457583.

The product of its (nonzero) digits is 771895089, while the sum is 78.

The spelling of 777990099777 in words is "seven hundred seventy-seven billion, nine hundred ninety million, ninety-nine thousand, seven hundred seventy-seven".