28107686537 has 16 divisors (see below), whose sum is σ = 33955276800. Its totient is φ = 22728762000.

The previous prime is 28107686479. The next prime is 28107686543. The reversal of 28107686537 is 73568670182.

It is not a de Polignac number, because 28107686537 - 2⁸ = 28107686281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28107686597) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 410339 + ... + 473912.

It is an arithmetic number, because the mean of its divisors is an integer number (2122204800).

Almost surely, 2^28107686537 is an apocalyptic number.

It is an amenable number.

28107686537 is a deficient number, since it is larger than the sum of its proper divisors (5847590263).

28107686537 is a wasteful number, since it uses less digits than its factorization.

28107686537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884516.

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

The spelling of 28107686537 in words is "twenty-eight billion, one hundred seven million, six hundred eighty-six thousand, five hundred thirty-seven".