77000000777 has 16 divisors (see below), whose sum is σ = 89008147200. Its totient is φ = 65245436928.

The previous prime is 77000000771. The next prime is 77000000807. The reversal of 77000000777 is 77700000077.

It is not a de Polignac number, because 77000000777 - 2⁸ = 77000000521 is a prime.

77000000777 is a modest number, since divided by 777 gives 77 as remainder.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (77000000771) 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, 538349 + ... + 666197.

It is an arithmetic number, because the mean of its divisors is an integer number (5563009200).

Almost surely, 2^77000000777 is an apocalyptic number.

It is an amenable number.

77000000777 is a deficient number, since it is larger than the sum of its proper divisors (12008146423).

77000000777 is a wasteful number, since it uses less digits than its factorization.

77000000777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128840.

The product of its (nonzero) digits is 16807, while the sum is 35.

The spelling of 77000000777 in words is "seventy-seven billion, seven hundred seventy-seven", and thus it is an aban number.