28894604918 has 4 divisors (see below), whose sum is σ = 43341907380. Its totient is φ = 14447302458.

The previous prime is 28894604903. The next prime is 28894604941. The reversal of 28894604918 is 81940649882.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 7223651228 + ... + 7223651231.

It is an arithmetic number, because the mean of its divisors is an integer number (10835476845).

Almost surely, 2^28894604918 is an apocalyptic number.

28894604918 is a deficient number, since it is larger than the sum of its proper divisors (14447302462).

28894604918 is a wasteful number, since it uses less digits than its factorization.

28894604918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14447302461.

The product of its (nonzero) digits is 7962624, while the sum is 59.

The spelling of 28894604918 in words is "twenty-eight billion, eight hundred ninety-four million, six hundred four thousand, nine hundred eighteen".