28799316772 has 6 divisors (see below), whose sum is σ = 50398804358. Its totient is φ = 14399658384.

The previous prime is 28799316757. The next prime is 28799316773. The reversal of 28799316772 is 27761399782.

It can be written as a sum of positive squares in only one way, i.e., 18685796416 + 10113520356 = 136696^2 + 100566^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28799316772.

It is not an unprimeable number, because it can be changed into a prime (28799316773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3599914593 + ... + 3599914600.

Almost surely, 2^28799316772 is an apocalyptic number.

It is an amenable number.

28799316772 is a deficient number, since it is larger than the sum of its proper divisors (21599487586).

28799316772 is a wasteful number, since it uses less digits than its factorization.

28799316772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7199829197 (or 7199829195 counting only the distinct ones).

The product of its digits is 16003008, while the sum is 61.

The spelling of 28799316772 in words is "twenty-eight billion, seven hundred ninety-nine million, three hundred sixteen thousand, seven hundred seventy-two".