77008077777 has 8 divisors (see below), whose sum is σ = 103048114816. Its totient is φ = 51153379632.

The previous prime is 77008077761. The next prime is 77008077781. The reversal of 77008077777 is 77777080077.

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

It is not a de Polignac number, because 77008077777 - 2⁴ = 77008077761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77008077787) 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, 46333753 + ... + 46335414.

It is an arithmetic number, because the mean of its divisors is an integer number (12881014352).

Almost surely, 2^77008077777 is an apocalyptic number.

It is an amenable number.

77008077777 is a deficient number, since it is larger than the sum of its proper divisors (26040037039).

77008077777 is a wasteful number, since it uses less digits than its factorization.

77008077777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92669447.

The product of its (nonzero) digits is 6588344, while the sum is 57.

The spelling of 77008077777 in words is "seventy-seven billion, eight million, seventy-seven thousand, seven hundred seventy-seven".