770867227778 has 18 divisors (see below), whose sum is σ = 1159350317307. Its totient is φ = 384419793600.

The previous prime is 770867227771. The next prime is 770867227811. The reversal of 770867227778 is 877722768077.

It can be written as a sum of positive squares in 5 ways, for example, as 744039080929 + 26828146849 = 862577^2 + 163793^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=620833.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (770867227771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 746240750 + ... + 746241782.

Almost surely, 2^770867227778 is an apocalyptic number.

770867227778 is a deficient number, since it is larger than the sum of its proper divisors (388483089529).

770867227778 is an frugal number, since it uses more digits than its factorization.

770867227778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3270 (or 1636 counting only the distinct ones).

The product of its (nonzero) digits is 180708864, while the sum is 68.

The spelling of 770867227778 in words is "seven hundred seventy billion, eight hundred sixty-seven million, two hundred twenty-seven thousand, seven hundred seventy-eight".