773989974289 has 27 divisors (see below), whose sum is σ = 956562588657. Its totient is φ = 624310815744.

The previous prime is 773989974259. The next prime is 773989974293. The reversal of 773989974289 is 982479989377.

The square root of 773989974289 is 879767.

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

It can be written as a sum of positive squares in 4 ways, for example, as 4439956689 + 769550017600 = 66633^2 + 877240^2 .

It is not a de Polignac number, because 773989974289 - 2⁹ = 773989973777 is a prime.

It is a super-3 number, since 3×773989974289³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (773989974259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 104688577 + ... + 104695969.

Almost surely, 2^773989974289 is an apocalyptic number.

773989974289 is the 879767-th square number.

773989974289 is the 439884-th centered octagonal number.

It is an amenable number.

773989974289 is a deficient number, since it is larger than the sum of its proper divisors (182572614368).

773989974289 is an frugal number, since it uses more digits than its factorization.

773989974289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14834 (or 7417 counting only the distinct ones).

The product of its digits is 3456649728, while the sum is 82.

The spelling of 773989974289 in words is "seven hundred seventy-three billion, nine hundred eighty-nine million, nine hundred seventy-four thousand, two hundred eighty-nine".