28338883882 has 4 divisors (see below), whose sum is σ = 42508325826. Its totient is φ = 14169441940.

The previous prime is 28338883831. The next prime is 28338883883. The reversal of 28338883882 is 28838883382.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16623202761 + 11715681121 = 128931^2 + 108239^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28338883882.

It is not an unprimeable number, because it can be changed into a prime (28338883883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7084720969 + ... + 7084720972.

Almost surely, 2^28338883882 is an apocalyptic number.

28338883882 is a deficient number, since it is larger than the sum of its proper divisors (14169441944).

28338883882 is a wasteful number, since it uses less digits than its factorization.

28338883882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14169441943.

The product of its digits is 28311552, while the sum is 61.

The spelling of 28338883882 in words is "twenty-eight billion, three hundred thirty-eight million, eight hundred eighty-three thousand, eight hundred eighty-two".