28321063642 has 8 divisors (see below), whose sum is σ = 42483272832. Its totient is φ = 14159972700.

The previous prime is 28321063633. The next prime is 28321063651. The reversal of 28321063642 is 24636012382.

It is an interprime number because it is at equal distance from previous prime (28321063633) and next prime (28321063651).

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213084 + ... + 319447.

It is an arithmetic number, because the mean of its divisors is an integer number (5310409104).

Almost surely, 2^28321063642 is an apocalyptic number.

28321063642 is a deficient number, since it is larger than the sum of its proper divisors (14162209190).

28321063642 is a wasteful number, since it uses less digits than its factorization.

28321063642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559124.

The product of its (nonzero) digits is 82944, while the sum is 37.

The spelling of 28321063642 in words is "twenty-eight billion, three hundred twenty-one million, sixty-three thousand, six hundred forty-two".