777000080 has 20 divisors (see below), whose sum is σ = 1806525372. Its totient is φ = 310800000.

The previous prime is 777000071. The next prime is 777000121. The reversal of 777000080 is 80000777.

It can be written as a sum of positive squares in 2 ways, for example, as 579653776 + 197346304 = 24076^2 + 14048^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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, 4856171 + ... + 4856330.

Almost surely, 2^777000080 is an apocalyptic number.

It is an amenable number.

777000080 is an abundant number, since it is smaller than the sum of its proper divisors (1029525292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

777000080 is a wasteful number, since it uses less digits than its factorization.

777000080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9712514 (or 9712508 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 29.

The square root of 777000080 is about 27874.7211645247. The cubic root of 777000080 is about 919.3347743087.

The spelling of 777000080 in words is "seven hundred seventy-seven million, eighty", and thus it is an aban number.