28029628148 has 12 divisors (see below), whose sum is σ = 49053194820. Its totient is φ = 14014429632.

The previous prime is 28029628141. The next prime is 28029628199. The reversal of 28029628148 is 84182692082.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5944101604 + 22085526544 = 77098^2 + 148612^2 .

It is a super-3 number, since 3×28029628148³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28029628096 and 28029628105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28029628141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123890 + ... + 267222.

It is an arithmetic number, because the mean of its divisors is an integer number (4087766235).

Almost surely, 2^28029628148 is an apocalyptic number.

It is an amenable number.

28029628148 is a deficient number, since it is larger than the sum of its proper divisors (21023566672).

28029628148 is a wasteful number, since it uses less digits than its factorization.

28029628148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192226 (or 192224 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 50.

The spelling of 28029628148 in words is "twenty-eight billion, twenty-nine million, six hundred twenty-eight thousand, one hundred forty-eight".