28658898734 has 4 divisors (see below), whose sum is σ = 42988348104. Its totient is φ = 14329449366.

The previous prime is 28658898701. The next prime is 28658898757. The reversal of 28658898734 is 43789885682.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7164724682 + ... + 7164724685.

It is an arithmetic number, because the mean of its divisors is an integer number (10747087026).

Almost surely, 2^28658898734 is an apocalyptic number.

28658898734 is a deficient number, since it is larger than the sum of its proper divisors (14329449370).

28658898734 is a wasteful number, since it uses less digits than its factorization.

28658898734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14329449369.

The product of its digits is 185794560, while the sum is 68.

The spelling of 28658898734 in words is "twenty-eight billion, six hundred fifty-eight million, eight hundred ninety-eight thousand, seven hundred thirty-four".