9857164461 has 4 divisors (see below), whose sum is σ = 13142885952. Its totient is φ = 6571442972.

The previous prime is 9857164453. The next prime is 9857164511. The reversal of 9857164461 is 1644617589.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1644617589 = 3 ⋅548205863.

It is a cyclic number.

It is not a de Polignac number, because 9857164461 - 2³ = 9857164453 is a prime.

It is a super-2 number, since 2×9857164461² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9857144461) 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, 1642860741 + ... + 1642860746.

It is an arithmetic number, because the mean of its divisors is an integer number (3285721488).

Almost surely, 2^9857164461 is an apocalyptic number.

It is an amenable number.

9857164461 is a deficient number, since it is larger than the sum of its proper divisors (3285721491).

9857164461 is a wasteful number, since it uses less digits than its factorization.

9857164461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3285721490.

The product of its digits is 1451520, while the sum is 51.

The square root of 9857164461 is about 99283.2536785535. The cubic root of 9857164461 is about 2144.1277987937.

The spelling of 9857164461 in words is "nine billion, eight hundred fifty-seven million, one hundred sixty-four thousand, four hundred sixty-one".