28914434604 has 72 divisors (see below), whose sum is σ = 79762043088. Its totient is φ = 8758840320.

The previous prime is 28914434603. The next prime is 28914434611. The reversal of 28914434604 is 40643441982.

28914434604 is a `hidden beast` number, since 2 + 8 + 9 + 1 + 4 + 4 + 34 + 604 = 666.

It is a super-3 number, since 3×28914434604³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28914434604.

It is not an unprimeable number, because it can be changed into a prime (28914434603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1262584 + ... + 1285280.

It is an arithmetic number, because the mean of its divisors is an integer number (1107806154).

Almost surely, 2^28914434604 is an apocalyptic number.

It is an amenable number.

28914434604 is an abundant number, since it is smaller than the sum of its proper divisors (50847608484).

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

28914434604 is a wasteful number, since it uses less digits than its factorization.

28914434604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25935 (or 25930 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The spelling of 28914434604 in words is "twenty-eight billion, nine hundred fourteen million, four hundred thirty-four thousand, six hundred four".