28443370808 has 32 divisors (see below), whose sum is σ = 56074930560. Its totient is φ = 13499497440.

The previous prime is 28443370807. The next prime is 28443370817. The reversal of 28443370808 is 80807334482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28443370801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 565910 + ... + 614117.

It is an arithmetic number, because the mean of its divisors is an integer number (1752341580).

Almost surely, 2^28443370808 is an apocalyptic number.

It is an amenable number.

28443370808 is a deficient number, since it is larger than the sum of its proper divisors (27631559752).

28443370808 is a wasteful number, since it uses less digits than its factorization.

28443370808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180187 (or 1180183 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 47.

The spelling of 28443370808 in words is "twenty-eight billion, four hundred forty-three million, three hundred seventy thousand, eight hundred eight".