28995603705 has 48 divisors (see below), whose sum is σ = 53282571264. Its totient is φ = 14560974720.

The previous prime is 28995603697. The next prime is 28995603713. The reversal of 28995603705 is 50730659982.

28995603705 is a `hidden beast` number, since 2 + 8 + 9 + 9 + 560 + 3 + 70 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (28995603697) and next prime (28995603713).

It is not a de Polignac number, because 28995603705 - 2³ = 28995603697 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 229269 + ... + 332498.

It is an arithmetic number, because the mean of its divisors is an integer number (1110053568).

Almost surely, 2^28995603705 is an apocalyptic number.

It is an amenable number.

28995603705 is a deficient number, since it is larger than the sum of its proper divisors (24286967559).

28995603705 is a wasteful number, since it uses less digits than its factorization.

28995603705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561846 (or 561843 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 54.

The spelling of 28995603705 in words is "twenty-eight billion, nine hundred ninety-five million, six hundred three thousand, seven hundred five".