777777000077 has 32 divisors (see below), whose sum is σ = 1030839091200. Its totient is φ = 568477224000.

The previous prime is 777777000019. The next prime is 777777000079. The reversal of 777777000077 is 770000777777.

It is a happy number.

It is not a de Polignac number, because 777777000077 - 2¹⁴ = 777776983693 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 777776999986 and 777777000031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (777777000079) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2484077 + ... + 2779602.

It is an arithmetic number, because the mean of its divisors is an integer number (32213721600).

Almost surely, 2^777777000077 is an apocalyptic number.

777777000077 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

777777000077 is a deficient number, since it is larger than the sum of its proper divisors (253062091123).

777777000077 is a wasteful number, since it uses less digits than its factorization.

777777000077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5263817.

The product of its (nonzero) digits is 5764801, while the sum is 56.

The spelling of 777777000077 in words is "seven hundred seventy-seven billion, seven hundred seventy-seven million, seventy-seven", and thus it is an aban number.