28761707698 has 8 divisors (see below), whose sum is σ = 43149140892. Its totient is φ = 14378660736.

The previous prime is 28761707693. The next prime is 28761707699. The reversal of 28761707698 is 89670716782.

It can be written as a sum of positive squares in 2 ways, for example, as 25570248649 + 3191459049 = 159907^2 + 56493^2 .

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

It is not an unprimeable number, because it can be changed into a prime (28761707693) by changing a digit.

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, 1080115 + ... + 1106422.

Almost surely, 2^28761707698 is an apocalyptic number.

28761707698 is a deficient number, since it is larger than the sum of its proper divisors (14387433194).

28761707698 is a wasteful number, since it uses less digits than its factorization.

28761707698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193116.

The product of its (nonzero) digits is 14224896, while the sum is 61.

The spelling of 28761707698 in words is "twenty-eight billion, seven hundred sixty-one million, seven hundred seven thousand, six hundred ninety-eight".