28389579318240 has 288 divisors, whose sum is σ = 106839088068384. Its totient is φ = 6313666867200.

The previous prime is 28389579318181. The next prime is 28389579318253. The reversal of 28389579318240 is 4281397598382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15441111 + ... + 17181590.

It is an arithmetic number, because the mean of its divisors is an integer number (370969055793).

Almost surely, 2^{28389579318240} is an apocalyptic number.

28389579318240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28389579318240 is an abundant number, since it is smaller than the sum of its proper divisors (78449508750144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28389579318240 is a wasteful number, since it uses less digits than its factorization.

28389579318240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32622770 (or 32622755 counting only the distinct ones).

The product of its (nonzero) digits is 209018880, while the sum is 69.

The spelling of 28389579318240 in words is "twenty-eight trillion, three hundred eighty-nine billion, five hundred seventy-nine million, three hundred eighteen thousand, two hundred forty".