9457138481 has 16 divisors (see below), whose sum is σ = 10967865216. Its totient is φ = 7987078656.

The previous prime is 9457138429. The next prime is 9457138499. The reversal of 9457138481 is 1848317549.

It is a happy number.

9457138481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9457138481 is a prime.

It is a super-2 number, since 2×9457138481² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9457138421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123455 + ... + 184811.

It is an arithmetic number, because the mean of its divisors is an integer number (685491576).

Almost surely, 2^9457138481 is an apocalyptic number.

It is an amenable number.

9457138481 is a deficient number, since it is larger than the sum of its proper divisors (1510726735).

9457138481 is a wasteful number, since it uses less digits than its factorization.

9457138481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61688.

The product of its digits is 967680, while the sum is 50.

The square root of 9457138481 is about 97247.8199292920. The cubic root of 9457138481 is about 2114.7218349231.

The spelling of 9457138481 in words is "nine billion, four hundred fifty-seven million, one hundred thirty-eight thousand, four hundred eighty-one".