28821393662 has 8 divisors (see below), whose sum is σ = 43840993392. Its totient is φ = 14207729200.

The previous prime is 28821393647. The next prime is 28821393677. The reversal of 28821393662 is 26639312882.

It is an interprime number because it is at equal distance from previous prime (28821393647) and next prime (28821393677).

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

It is a self number, because there is not a number n which added to its sum of digits gives 28821393662.

It is a congruent number.

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, 101483639 + ... + 101483922.

It is an arithmetic number, because the mean of its divisors is an integer number (5480124174).

Almost surely, 2^28821393662 is an apocalyptic number.

28821393662 is a deficient number, since it is larger than the sum of its proper divisors (15019599730).

28821393662 is a wasteful number, since it uses less digits than its factorization.

28821393662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202967634.

The product of its digits is 1492992, while the sum is 50.

The spelling of 28821393662 in words is "twenty-eight billion, eight hundred twenty-one million, three hundred ninety-three thousand, six hundred sixty-two".