9826868461 has 4 divisors (see below), whose sum is σ = 9834737500. Its totient is φ = 9818999424.

The previous prime is 9826868437. The next prime is 9826868503. The reversal of 9826868461 is 1648686289.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1648686289 = 103 ⋅16006663.

It can be written as a sum of positive squares in 2 ways, for example, as 3825422500 + 6001445961 = 61850^2 + 77469^2 .

It is a cyclic number.

It is not a de Polignac number, because 9826868461 - 2¹³ = 9826860269 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9826868396 and 9826868405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9826868861) 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, 3932646 + ... + 3935143.

It is an arithmetic number, because the mean of its divisors is an integer number (2458684375).

Almost surely, 2^9826868461 is an apocalyptic number.

It is an amenable number.

9826868461 is a deficient number, since it is larger than the sum of its proper divisors (7869039).

9826868461 is a wasteful number, since it uses less digits than its factorization.

9826868461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7869038.

The product of its digits is 7962624, while the sum is 58.

The square root of 9826868461 is about 99130.5626988973. The cubic root of 9826868461 is about 2141.9288851708.

The spelling of 9826868461 in words is "nine billion, eight hundred twenty-six million, eight hundred sixty-eight thousand, four hundred sixty-one".