770868196081 has 9 divisors (see below), whose sum is σ = 772662583371. Its totient is φ = 769077972432.

The previous prime is 770868196073. The next prime is 770868196159. The reversal of 770868196081 is 180691868077.

The square root of 770868196081 is 877991.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 22324842225 + 748543353856 = 149415^2 + 865184^2 .

It is not a de Polignac number, because 770868196081 - 2³ = 770868196073 is a prime.

It is a super-3 number, since 3×770868196081³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (770868194081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 541719736 + ... + 541721158.

Almost surely, 2^770868196081 is an apocalyptic number.

770868196081 is the 877991-st square number.

770868196081 is the 438996-th centered octagonal number.

It is an amenable number.

770868196081 is a deficient number, since it is larger than the sum of its proper divisors (1794387290).

770868196081 is an frugal number, since it uses more digits than its factorization.

770868196081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4080 (or 2040 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 61.

The spelling of 770868196081 in words is "seven hundred seventy billion, eight hundred sixty-eight million, one hundred ninety-six thousand, eighty-one".