28048004928 has 42 divisors (see below), whose sum is σ = 80394543554. Its totient is φ = 9349334784.

The previous prime is 28048004917. The next prime is 28048004939. The reversal of 28048004928 is 82940084082.

It is a happy number.

28048004928 is a `hidden beast` number, since 2 + 80 + 4 + 80 + 0 + 492 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (28048004917) and next prime (28048004939).

It can be written as a sum of positive squares in only one way, i.e., 17506465344 + 10541539584 = 132312^2 + 102672^2 .

It is a super-2 number, since 2×28048004928² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24346651 + ... + 24347802.

Almost surely, 2^28048004928 is an apocalyptic number.

It is an amenable number.

28048004928 is an abundant number, since it is smaller than the sum of its proper divisors (52346538626).

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

28048004928 is a wasteful number, since it uses less digits than its factorization.

28048004928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48694471 (or 48694458 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The spelling of 28048004928 in words is "twenty-eight billion, forty-eight million, four thousand, nine hundred twenty-eight".