28061775502 has 8 divisors (see below), whose sum is σ = 42134218776. Its totient is φ = 14017035912.

The previous prime is 28061775479. The next prime is 28061775529. The reversal of 28061775502 is 20557716082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 6923388 + ... + 6927439.

It is an arithmetic number, because the mean of its divisors is an integer number (5266777347).

Almost surely, 2^28061775502 is an apocalyptic number.

28061775502 is a deficient number, since it is larger than the sum of its proper divisors (14072443274).

28061775502 is a wasteful number, since it uses less digits than its factorization.

28061775502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13851842.

The product of its (nonzero) digits is 235200, while the sum is 43.

The spelling of 28061775502 in words is "twenty-eight billion, sixty-one million, seven hundred seventy-five thousand, five hundred two".