32428886638 has 8 divisors (see below), whose sum is σ = 48656962440. Its totient is φ = 16209899160.

The previous prime is 32428886621. The next prime is 32428886681. The reversal of 32428886638 is 83668882423.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2263153 + ... + 2277436.

It is an arithmetic number, because the mean of its divisors is an integer number (6082120305).

Almost surely, 2^32428886638 is an apocalyptic number.

32428886638 is a deficient number, since it is larger than the sum of its proper divisors (16228075802).

32428886638 is a wasteful number, since it uses less digits than its factorization.

32428886638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4544162.

The product of its digits is 21233664, while the sum is 58.

The spelling of 32428886638 in words is "thirty-two billion, four hundred twenty-eight million, eight hundred eighty-six thousand, six hundred thirty-eight".