28710814444 has 72 divisors (see below), whose sum is σ = 55531083552. Its totient is φ = 12979699200.

The previous prime is 28710814439. The next prime is 28710814459. The reversal of 28710814444 is 44441801782.

It is a self number, because there is not a number n which added to its sum of digits gives 28710814444.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7449622 + ... + 7453474.

Almost surely, 2^28710814444 is an apocalyptic number.

It is an amenable number.

28710814444 is a deficient number, since it is larger than the sum of its proper divisors (26820269108).

28710814444 is a wasteful number, since it uses less digits than its factorization.

28710814444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4107 (or 4092 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 43.

The spelling of 28710814444 in words is "twenty-eight billion, seven hundred ten million, eight hundred fourteen thousand, four hundred forty-four".