9867957461 has 4 divisors (see below), whose sum is σ = 10134659052. Its totient is φ = 9601255872.

The previous prime is 9867957431. The next prime is 9867957497. The reversal of 9867957461 is 1647597689.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1647597689 = 367 ⋅4489367.

It can be written as a sum of positive squares in 2 ways, for example, as 9536499025 + 331458436 = 97655^2 + 18206^2 .

It is a cyclic number.

It is not a de Polignac number, because 9867957461 - 2¹⁴ = 9867941077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9867957394 and 9867957403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9867957431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133350740 + ... + 133350813.

It is an arithmetic number, because the mean of its divisors is an integer number (2533664763).

Almost surely, 2^9867957461 is an apocalyptic number.

It is an amenable number.

9867957461 is a deficient number, since it is larger than the sum of its proper divisors (266701591).

9867957461 is a wasteful number, since it uses less digits than its factorization.

9867957461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266701590.

The product of its digits is 22861440, while the sum is 62.

The square root of 9867957461 is about 99337.5933924312. The cubic root of 9867957461 is about 2144.9100768464.

The spelling of 9867957461 in words is "nine billion, eight hundred sixty-seven million, nine hundred fifty-seven thousand, four hundred sixty-one".