9275421657 has 4 divisors (see below), whose sum is σ = 12367228880. Its totient is φ = 6183614436.

The previous prime is 9275421607. The next prime is 9275421667. The reversal of 9275421657 is 7561245729.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7561245729 = 3 ⋅2520415243.

It is not a de Polignac number, because 9275421657 - 2⁸ = 9275421401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9275421607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1545903607 + ... + 1545903612.

It is an arithmetic number, because the mean of its divisors is an integer number (3091807220).

Almost surely, 2^9275421657 is an apocalyptic number.

It is an amenable number.

9275421657 is a deficient number, since it is larger than the sum of its proper divisors (3091807223).

9275421657 is a wasteful number, since it uses less digits than its factorization.

9275421657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3091807222.

The product of its digits is 1058400, while the sum is 48.

The square root of 9275421657 is about 96308.9905304796. The cubic root of 9275421657 is about 2101.0895069876.

It can be divided in two parts, 92754 and 21657, that added together give a palindrome (114411).

The spelling of 9275421657 in words is "nine billion, two hundred seventy-five million, four hundred twenty-one thousand, six hundred fifty-seven".