28618822738 has 8 divisors (see below), whose sum is σ = 46830800880. Its totient is φ = 13008555780.

The previous prime is 28618822709. The next prime is 28618822801. The reversal of 28618822738 is 83722881682.

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, 650427768 + ... + 650427811.

It is an arithmetic number, because the mean of its divisors is an integer number (5853850110).

Almost surely, 2^28618822738 is an apocalyptic number.

28618822738 is a deficient number, since it is larger than the sum of its proper divisors (18211978142).

28618822738 is a wasteful number, since it uses less digits than its factorization.

28618822738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300855592.

The product of its digits is 4128768, while the sum is 55.

The spelling of 28618822738 in words is "twenty-eight billion, six hundred eighteen million, eight hundred twenty-two thousand, seven hundred thirty-eight".