77703377677 has 8 divisors (see below), whose sum is σ = 77944216896. Its totient is φ = 77462599872.

The previous prime is 77703377669. The next prime is 77703377707. The reversal of 77703377677 is 77677330777.

It is a happy number.

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 77703377677 - 2³ = 77703377669 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 (77703377377) 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, 5075328 + ... + 5090614.

It is an arithmetic number, because the mean of its divisors is an integer number (9743027112).

Almost surely, 2^77703377677 is an apocalyptic number.

It is an amenable number.

77703377677 is a deficient number, since it is larger than the sum of its proper divisors (240839219).

77703377677 is a wasteful number, since it uses less digits than its factorization.

77703377677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30707.

The product of its (nonzero) digits is 44471322, while the sum is 61.

The spelling of 77703377677 in words is "seventy-seven billion, seven hundred three million, three hundred seventy-seven thousand, six hundred seventy-seven".