27802322638 has 8 divisors (see below), whose sum is σ = 41773107600. Its totient is φ = 13877953440.

The previous prime is 27802322629. The next prime is 27802322683. The reversal of 27802322638 is 83622320872.

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

It is a junction number, because it is equal to n+sod(n) for n = 27802322594 and 27802322603.

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, 11602443 + ... + 11604838.

It is an arithmetic number, because the mean of its divisors is an integer number (5221638450).

Almost surely, 2^27802322638 is an apocalyptic number.

27802322638 is a deficient number, since it is larger than the sum of its proper divisors (13970784962).

27802322638 is a wasteful number, since it uses less digits than its factorization.

27802322638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23207882.

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 27802322638 in words is "twenty-seven billion, eight hundred two million, three hundred twenty-two thousand, six hundred thirty-eight".