28545414398 has 4 divisors (see below), whose sum is σ = 42818121600. Its totient is φ = 14272707198.

The previous prime is 28545414383. The next prime is 28545414407. The reversal of 28545414398 is 89341454582.

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

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, 7136353598 + ... + 7136353601.

It is an arithmetic number, because the mean of its divisors is an integer number (10704530400).

Almost surely, 2^28545414398 is an apocalyptic number.

28545414398 is a deficient number, since it is larger than the sum of its proper divisors (14272707202).

28545414398 is a wasteful number, since it uses less digits than its factorization.

28545414398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14272707201.

The product of its digits is 5529600, while the sum is 53.

The spelling of 28545414398 in words is "twenty-eight billion, five hundred forty-five million, four hundred fourteen thousand, three hundred ninety-eight".