9812661468 has 24 divisors (see below), whose sum is σ = 23328215568. Its totient is φ = 3209172096.

The previous prime is 9812661461. The next prime is 9812661527. The reversal of 9812661468 is 8641662189.

It is a self number, because there is not a number n which added to its sum of digits gives 9812661468.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9812661461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7713721 + ... + 7714992.

It is an arithmetic number, because the mean of its divisors is an integer number (972008982).

Almost surely, 2^9812661468 is an apocalyptic number.

It is an amenable number.

9812661468 is an abundant number, since it is smaller than the sum of its proper divisors (13515554100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9812661468 is a wasteful number, since it uses less digits than its factorization.

9812661468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15428773 (or 15428771 counting only the distinct ones).

The product of its digits is 995328, while the sum is 51.

The square root of 9812661468 is about 99058.8787943817. The cubic root of 9812661468 is about 2140.8961707890.

The spelling of 9812661468 in words is "nine billion, eight hundred twelve million, six hundred sixty-one thousand, four hundred sixty-eight".