974609251729 has 9 divisors (see below), whose sum is σ = 979146741307. Its totient is φ = 970092706504.

The previous prime is 974609251727. The next prime is 974609251753. The reversal of 974609251729 is 927152906479.

The square root of 974609251729 is 987223.

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., 21838041729 + 952771210000 = 147777^2 + 976100^2 .

It is not a de Polignac number, because 974609251729 - 2¹ = 974609251727 is a prime.

It is a super-2 number, since 2×974609251729² (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 (974609251727) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 224097447 + ... + 224101795.

Almost surely, 2^974609251729 is an apocalyptic number.

974609251729 is the 987223-rd square number.

974609251729 is the 493612-nd centered octagonal number.

It is an amenable number.

974609251729 is a deficient number, since it is larger than the sum of its proper divisors (4537489578).

974609251729 is an frugal number, since it uses more digits than its factorization.

974609251729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9152 (or 4576 counting only the distinct ones).

The product of its (nonzero) digits is 17146080, while the sum is 61.

The spelling of 974609251729 in words is "nine hundred seventy-four billion, six hundred nine million, two hundred fifty-one thousand, seven hundred twenty-nine".