28107553448 has 32 divisors (see below), whose sum is σ = 56762617800. Its totient is φ = 12971121408.

The previous prime is 28107553421. The next prime is 28107553457. The reversal of 28107553448 is 84435570182.

It can be written as a sum of positive squares in 4 ways, for example, as 28090430404 + 17123044 = 167602^2 + 4138^2 .

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1464458 + ... + 1483526.

Almost surely, 2^28107553448 is an apocalyptic number.

It is an amenable number.

28107553448 is an abundant number, since it is smaller than the sum of its proper divisors (28655064352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28107553448 is a wasteful number, since it uses less digits than its factorization.

28107553448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33261 (or 33257 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 47.

The spelling of 28107553448 in words is "twenty-eight billion, one hundred seven million, five hundred fifty-three thousand, four hundred forty-eight".