9406645281 has 12 divisors (see below), whose sum is σ = 14822592720. Its totient is φ = 5700997080.

The previous prime is 9406645279. The next prime is 9406645307. The reversal of 9406645281 is 1825466049.

It is not a de Polignac number, because 9406645281 - 2¹ = 9406645279 is a prime.

It is a super-2 number, since 2×9406645281² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9406645181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47508211 + ... + 47508408.

It is an arithmetic number, because the mean of its divisors is an integer number (1235216060).

Almost surely, 2^9406645281 is an apocalyptic number.

It is an amenable number.

9406645281 is a deficient number, since it is larger than the sum of its proper divisors (5415947439).

9406645281 is a wasteful number, since it uses less digits than its factorization.

9406645281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95016636 (or 95016633 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 9406645281 is about 96987.8615136967. The cubic root of 9406645281 is about 2110.9515022298.

The spelling of 9406645281 in words is "nine billion, four hundred six million, six hundred forty-five thousand, two hundred eighty-one".