28339478392 has 8 divisors (see below), whose sum is σ = 53136522000. Its totient is φ = 14169739192.

The previous prime is 28339478389. The next prime is 28339478441. The reversal of 28339478392 is 29387493382.

It is a tau number, because it is divible by the number of its divisors (8).

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, 1771217392 + ... + 1771217407.

It is an arithmetic number, because the mean of its divisors is an integer number (6642065250).

Almost surely, 2^28339478392 is an apocalyptic number.

It is an amenable number.

28339478392 is a deficient number, since it is larger than the sum of its proper divisors (24797043608).

28339478392 is a wasteful number, since it uses less digits than its factorization.

28339478392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3542434805 (or 3542434801 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 58.

The spelling of 28339478392 in words is "twenty-eight billion, three hundred thirty-nine million, four hundred seventy-eight thousand, three hundred ninety-two".