9694148221 has 16 divisors (see below), whose sum is σ = 10488366000. Its totient is φ = 8925815808.

The previous prime is 9694148209. The next prime is 9694148279. The reversal of 9694148221 is 1228414969.

It can be written as a sum of positive squares in 8 ways, for example, as 3134768121 + 6559380100 = 55989^2 + 80990^2 .

It is a cyclic number.

It is not a de Polignac number, because 9694148221 - 2²⁷ = 9559930493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9694142221) 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, 299035 + ... + 329863.

It is an arithmetic number, because the mean of its divisors is an integer number (655522875).

Almost surely, 2^9694148221 is an apocalyptic number.

It is an amenable number.

9694148221 is a deficient number, since it is larger than the sum of its proper divisors (794217779).

9694148221 is a wasteful number, since it uses less digits than its factorization.

9694148221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31248.

The product of its digits is 248832, while the sum is 46.

The square root of 9694148221 is about 98458.8656292566. The cubic root of 9694148221 is about 2132.2422859800.

The spelling of 9694148221 in words is "nine billion, six hundred ninety-four million, one hundred forty-eight thousand, two hundred twenty-one".