777000777777 has 48 divisors (see below), whose sum is σ = 1317849886080. Its totient is φ = 431831471616.

The previous prime is 777000777667. The next prime is 777000777793. The reversal of 777000777777 is 777777000777.

It is not a de Polignac number, because 777000777777 - 2⁸ = 777000777521 is a prime.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

777000777777 is a modest number, since divided by 777777 gives 777000 as remainder.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (777000777797) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6017698 + ... + 6145460.

It is an arithmetic number, because the mean of its divisors is an integer number (27455205960).

Almost surely, 2^777000777777 is an apocalyptic number.

It is an amenable number.

777000777777 is a deficient number, since it is larger than the sum of its proper divisors (540849108303).

777000777777 is a wasteful number, since it uses less digits than its factorization.

777000777777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130422 (or 130419 counting only the distinct ones).

The product of its (nonzero) digits is 40353607, while the sum is 63.

The spelling of 777000777777 in words is "seven hundred seventy-seven billion, seven hundred seventy-seven thousand, seven hundred seventy-seven".