28753422356 has 6 divisors (see below), whose sum is σ = 50318489130. Its totient is φ = 14376711176.

The previous prime is 28753422337. The next prime is 28753422391. The reversal of 28753422356 is 65322435782.

It can be written as a sum of positive squares in only one way, i.e., 23261130256 + 5492292100 = 152516^2 + 74110^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28753422356.

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, 3594177791 + ... + 3594177798.

It is an arithmetic number, because the mean of its divisors is an integer number (8386414855).

Almost surely, 2^28753422356 is an apocalyptic number.

It is an amenable number.

28753422356 is a deficient number, since it is larger than the sum of its proper divisors (21565066774).

28753422356 is a wasteful number, since it uses less digits than its factorization.

28753422356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7188355593 (or 7188355591 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 47.

The spelling of 28753422356 in words is "twenty-eight billion, seven hundred fifty-three million, four hundred twenty-two thousand, three hundred fifty-six".