9750457221 has 16 divisors (see below), whose sum is σ = 13909199040. Its totient is φ = 6057227520.

The previous prime is 9750457207. The next prime is 9750457231. The reversal of 9750457221 is 1227540579.

It is not a de Polignac number, because 9750457221 - 2²² = 9746262917 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9750457231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1398660 + ... + 1405613.

It is an arithmetic number, because the mean of its divisors is an integer number (869324940).

Almost surely, 2^9750457221 is an apocalyptic number.

It is an amenable number.

9750457221 is a deficient number, since it is larger than the sum of its proper divisors (4158741819).

9750457221 is a wasteful number, since it uses less digits than its factorization.

9750457221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2804356.

The product of its (nonzero) digits is 176400, while the sum is 42.

The square root of 9750457221 is about 98744.4034920461. The cubic root of 9750457221 is about 2136.3627343317.

The spelling of 9750457221 in words is "nine billion, seven hundred fifty million, four hundred fifty-seven thousand, two hundred twenty-one".