77777777708 has 12 divisors (see below), whose sum is σ = 136203026232. Its totient is φ = 38862627360.

The previous prime is 77777777683. The next prime is 77777777717. The reversal of 77777777708 is 80777777777.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6558710 + ... + 6570557.

It is an arithmetic number, because the mean of its divisors is an integer number (11350252186).

Almost surely, 2^77777777708 is an apocalyptic number.

It is an amenable number.

77777777708 is a deficient number, since it is larger than the sum of its proper divisors (58425248524).

77777777708 is a wasteful number, since it uses less digits than its factorization.

77777777708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13130752 (or 13130750 counting only the distinct ones).

The product of its (nonzero) digits is 322828856, while the sum is 71.

The spelling of 77777777708 in words is "seventy-seven billion, seven hundred seventy-seven million, seven hundred seventy-seven thousand, seven hundred eight".