28252442602 has 8 divisors (see below), whose sum is σ = 42380773956. Its totient is φ = 14125517952.

The previous prime is 28252442599. The next prime is 28252442663. The reversal of 28252442602 is 20624425282.

It can be written as a sum of positive squares in 2 ways, for example, as 28206866601 + 45576001 = 167949^2 + 6751^2 .

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, 299943 + ... + 382714.

Almost surely, 2^28252442602 is an apocalyptic number.

28252442602 is a deficient number, since it is larger than the sum of its proper divisors (14128331354).

28252442602 is a wasteful number, since it uses less digits than its factorization.

28252442602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703352.

The product of its (nonzero) digits is 122880, while the sum is 37.

Adding to 28252442602 its reverse (20624425282), we get a palindrome (48876867884).

The spelling of 28252442602 in words is "twenty-eight billion, two hundred fifty-two million, four hundred forty-two thousand, six hundred two".