28233901874 has 4 divisors (see below), whose sum is σ = 42350852814. Its totient is φ = 14116950936.

The previous prime is 28233901847. The next prime is 28233901889. The reversal of 28233901874 is 47810933282.

It is a happy number.

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., 28125637849 + 108264025 = 167707^2 + 10405^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7058475467 + ... + 7058475470.

Almost surely, 2^28233901874 is an apocalyptic number.

28233901874 is a deficient number, since it is larger than the sum of its proper divisors (14116950940).

28233901874 is a wasteful number, since it uses less digits than its factorization.

28233901874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14116950939.

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 28233901874 in words is "twenty-eight billion, two hundred thirty-three million, nine hundred one thousand, eight hundred seventy-four".