28461401112 has 32 divisors (see below), whose sum is σ = 71161256880. Its totient is φ = 9486099840.

The previous prime is 28461401099. The next prime is 28461401123. The reversal of 28461401112 is 21110416482.

It is a self number, because there is not a number n which added to its sum of digits gives 28461401112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178938 + ... + 298230.

Almost surely, 2^28461401112 is an apocalyptic number.

It is an amenable number.

28461401112 is an abundant number, since it is smaller than the sum of its proper divisors (42699855768).

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

28461401112 is a wasteful number, since it uses less digits than its factorization.

28461401112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129243 (or 129239 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

Adding to 28461401112 its reverse (21110416482), we get a palindrome (49571817594).

The spelling of 28461401112 in words is "twenty-eight billion, four hundred sixty-one million, four hundred one thousand, one hundred twelve".