32669478009 has 135 divisors (see below), whose sum is σ = 60314906421. Its totient is φ = 17568608400.

The previous prime is 32669477989. The next prime is 32669478041. The reversal of 32669478009 is 90087496623.

It is a happy number.

The square root of 32669478009 is 180747.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 32669478009 - 2¹⁹ = 32668953721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (32669478059) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 216354084 + ... + 216354234.

Almost surely, 2^32669478009 is an apocalyptic number.

32669478009 is the 180747-th square number.

32669478009 is the 90374-th centered octagonal number.

It is an amenable number.

32669478009 is a deficient number, since it is larger than the sum of its proper divisors (27645428412).

32669478009 is an equidigital number, since it uses as much as digits as its factorization.

32669478009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The spelling of 32669478009 in words is "thirty-two billion, six hundred sixty-nine million, four hundred seventy-eight thousand, nine".