28132075402 has 8 divisors (see below), whose sum is σ = 42308292096. Its totient is φ = 14029311372.

The previous prime is 28132075369. The next prime is 28132075427. The reversal of 28132075402 is 20457023182.

It is a happy number.

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, 18362208 + ... + 18363739.

It is an arithmetic number, because the mean of its divisors is an integer number (5288536512).

Almost surely, 2^28132075402 is an apocalyptic number.

28132075402 is a deficient number, since it is larger than the sum of its proper divisors (14176216694).

28132075402 is a wasteful number, since it uses less digits than its factorization.

28132075402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36726332.

The product of its (nonzero) digits is 26880, while the sum is 34.

Adding to 28132075402 its reverse (20457023182), we get a palindrome (48589098584).

The spelling of 28132075402 in words is "twenty-eight billion, one hundred thirty-two million, seventy-five thousand, four hundred two".