32688278401 has 3 divisors (see below), whose sum is σ = 32688459201. Its totient is φ = 32688097602.

The previous prime is 32688278333. The next prime is 32688278443. The reversal of 32688278401 is 10487288623.

The square root of 32688278401 is 180799.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 32688278401 - 2⁹ = 32688277889 is a prime.

It is a super-3 number, since 3×32688278401³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32688278801) 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 2 ways as a sum of consecutive naturals, for example, 90400 + ... + 271198.

It is an arithmetic number, because the mean of its divisors is an integer number (10896153067).

Almost surely, 2^32688278401 is an apocalyptic number.

32688278401 is the 180799-th square number.

32688278401 is the 90400-th centered octagonal number.

It is an amenable number.

32688278401 is a deficient number, since it is larger than the sum of its proper divisors (180800).

32688278401 is an frugal number, since it uses more digits than its factorization.

32688278401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361598 (or 180799 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 49.

Multiplying 32688278401 by its sum of digits (49), we get a square (1601725641649 = 1265593²).

The spelling of 32688278401 in words is "thirty-two billion, six hundred eighty-eight million, two hundred seventy-eight thousand, four hundred one".