773944606449377 has 18 divisors (see below), whose sum is σ = 889294503342546. Its totient is φ = 672995309900320.

The previous prime is 773944606449361. The next prime is 773944606449397.

773944606449377 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 722506391311441 + 51438215137936 = 26879479^2 + 7172044^2 .

It is not a de Polignac number, because 773944606449377 - 2⁴ = 773944606449361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (773944606449347) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6045528068 + ... + 6045656085.

It is an arithmetic number, because the mean of its divisors is an integer number (49405250185697).

Almost surely, 2^{773944606449377} is an apocalyptic number.

It is an amenable number.

773944606449377 is a deficient number, since it is larger than the sum of its proper divisors (115349896893169).

773944606449377 is a wasteful number, since it uses less digits than its factorization.

773944606449377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12091184221 (or 12091184187 counting only the distinct ones).

The product of its (nonzero) digits is 16131032064, while the sum is 80.

The spelling of 773944606449377 in words is "seven hundred seventy-three trillion, nine hundred forty-four billion, six hundred six million, four hundred forty-nine thousand, three hundred seventy-seven".