28239893282 has 4 divisors (see below), whose sum is σ = 42359839926. Its totient is φ = 14119946640.

The previous prime is 28239893257. The next prime is 28239893299.

28239893282 is nontrivially palindromic in base 10.

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., 28180001161 + 59892121 = 167869^2 + 7739^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7059973319 + ... + 7059973322.

Almost surely, 2^28239893282 is an apocalyptic number.

28239893282 is a deficient number, since it is larger than the sum of its proper divisors (14119946644).

28239893282 is a wasteful number, since it uses less digits than its factorization.

28239893282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14119946643.

The product of its digits is 5971968, while the sum is 56.

The spelling of 28239893282 in words is "twenty-eight billion, two hundred thirty-nine million, eight hundred ninety-three thousand, two hundred eighty-two".