3272638465 has 8 divisors (see below), whose sum is σ = 4158176040. Its totient is φ = 2464104192.

The previous prime is 3272638441. The next prime is 3272638511. The reversal of 3272638465 is 5648362723.

It can be written as a sum of positive squares in 4 ways, for example, as 221622769 + 3051015696 = 14887^2 + 55236^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3272638465 - 2⁵ = 3272638433 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19250730 + ... + 19250899.

It is an arithmetic number, because the mean of its divisors is an integer number (519772005).

Almost surely, 2^3272638465 is an apocalyptic number.

It is an amenable number.

3272638465 is a deficient number, since it is larger than the sum of its proper divisors (885537575).

3272638465 is a wasteful number, since it uses less digits than its factorization.

3272638465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38501651.

The product of its digits is 1451520, while the sum is 46.

The square root of 3272638465 is about 57206.9791633853. The cubic root of 3272638465 is about 1484.6793799682.

The spelling of 3272638465 in words is "three billion, two hundred seventy-two million, six hundred thirty-eight thousand, four hundred sixty-five".