974569763209 has 15 divisors (see below), whose sum is σ = 1136986841357. Its totient is φ = 835304048796.

The previous prime is 974569763191. The next prime is 974569763221. The reversal of 974569763209 is 902367965479.

The square root of 974569763209 is 987203.

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

It is not a de Polignac number, because 974569763209 - 2¹⁵ = 974569730441 is a prime.

It is a super-2 number, since 2×974569763209² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (974569763249) 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 14 ways as a sum of consecutive naturals, for example, 48362874 + ... + 48383020.

Almost surely, 2^974569763209 is an apocalyptic number.

974569763209 is the 987203-rd square number.

974569763209 is the 493602-nd centered octagonal number.

It is an amenable number.

974569763209 is a deficient number, since it is larger than the sum of its proper divisors (162417078148).

974569763209 is an frugal number, since it uses more digits than its factorization.

974569763209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40322 (or 20154 counting only the distinct ones).

The product of its (nonzero) digits is 154314720, while the sum is 67.

The spelling of 974569763209 in words is "nine hundred seventy-four billion, five hundred sixty-nine million, seven hundred sixty-three thousand, two hundred nine".