9646452681 has 24 divisors (see below), whose sum is σ = 13677807840. Its totient is φ = 6046129152.

The previous prime is 9646452661. The next prime is 9646452691. The reversal of 9646452681 is 1862546469.

9646452681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9646452681 - 2⁶ = 9646452617 is a prime.

It is a super-2 number, since 2×9646452681² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (9646452661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 869290 + ... + 880316.

It is an arithmetic number, because the mean of its divisors is an integer number (569908660).

Almost surely, 2^9646452681 is an apocalyptic number.

It is an amenable number.

9646452681 is a deficient number, since it is larger than the sum of its proper divisors (4031355159).

9646452681 is a wasteful number, since it uses less digits than its factorization.

9646452681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12073 (or 12056 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 51.

The square root of 9646452681 is about 98216.3564840399. The cubic root of 9646452681 is about 2128.7396336955.

The spelling of 9646452681 in words is "nine billion, six hundred forty-six million, four hundred fifty-two thousand, six hundred eighty-one".