28498746998 has 4 divisors (see below), whose sum is σ = 42748120500. Its totient is φ = 14249373498.

The previous prime is 28498746979. The next prime is 28498747003. The reversal of 28498746998 is 89964789482.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89964789482 = 2 ⋅44982394741.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7124686748 + ... + 7124686751.

It is an arithmetic number, because the mean of its divisors is an integer number (10687030125).

Almost surely, 2^28498746998 is an apocalyptic number.

28498746998 is a deficient number, since it is larger than the sum of its proper divisors (14249373502).

28498746998 is a wasteful number, since it uses less digits than its factorization.

28498746998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14249373501.

The product of its digits is 501645312, while the sum is 74.

The spelling of 28498746998 in words is "twenty-eight billion, four hundred ninety-eight million, seven hundred forty-six thousand, nine hundred ninety-eight".