77000077777 has 16 divisors (see below), whose sum is σ = 89458758400. Its totient is φ = 64906453440.

The previous prime is 77000077751. The next prime is 77000077789. The reversal of 77000077777 is 77777000077.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77000077777 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 77000077777.

It is not an unprimeable number, because it can be changed into a prime (77000077747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3044299 + ... + 3069487.

It is an arithmetic number, because the mean of its divisors is an integer number (5591172400).

Almost surely, 2^77000077777 is an apocalyptic number.

It is an amenable number.

77000077777 is a deficient number, since it is larger than the sum of its proper divisors (12458680623).

77000077777 is a wasteful number, since it uses less digits than its factorization.

77000077777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32416.

The product of its (nonzero) digits is 823543, while the sum is 49.

The spelling of 77000077777 in words is "seventy-seven billion, seventy-seven thousand, seven hundred seventy-seven".