28616750837 has 4 divisors (see below), whose sum is σ = 28617117900. Its totient is φ = 28616383776.

The previous prime is 28616750831. The next prime is 28616750849. The reversal of 28616750837 is 73805761682.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 22912574161 + 5704176676 = 151369^2 + 75526^2 .

It is a cyclic number.

It is not a de Polignac number, because 28616750837 - 2²⁴ = 28599973621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28616750831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15008 + ... + 239705.

It is an arithmetic number, because the mean of its divisors is an integer number (7154279475).

Almost surely, 2^28616750837 is an apocalyptic number.

It is an amenable number.

28616750837 is a deficient number, since it is larger than the sum of its proper divisors (367063).

28616750837 is a wasteful number, since it uses less digits than its factorization.

28616750837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367062.

The product of its (nonzero) digits is 3386880, while the sum is 53.

The spelling of 28616750837 in words is "twenty-eight billion, six hundred sixteen million, seven hundred fifty thousand, eight hundred thirty-seven".