28175154848 has 12 divisors (see below), whose sum is σ = 55469836170. Its totient is φ = 14087577408.

The previous prime is 28175154841. The next prime is 28175154883. The reversal of 28175154848 is 84845157182.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 24103183504 + 4071971344 = 155252^2 + 63812^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28175154848.

It is not an unprimeable number, because it can be changed into a prime (28175154841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440236763 + ... + 440236826.

Almost surely, 2^28175154848 is an apocalyptic number.

It is an amenable number.

28175154848 is a deficient number, since it is larger than the sum of its proper divisors (27294681322).

28175154848 is an equidigital number, since it uses as much as digits as its factorization.

28175154848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880473599 (or 880473591 counting only the distinct ones).

The product of its digits is 2867200, while the sum is 53.

The spelling of 28175154848 in words is "twenty-eight billion, one hundred seventy-five million, one hundred fifty-four thousand, eight hundred forty-eight".