28741586209923 has 32 divisors (see below), whose sum is σ = 39497301043200. Its totient is φ = 18579476678400.

The previous prime is 28741586209913. The next prime is 28741586209951. The reversal of 28741586209923 is 32990268514782.

It is a Cunningham number, because it is equal to 5361118²-1.

It is not a de Polignac number, because 28741586209923 - 2¹⁸ = 28741585947779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28741586209913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15189838 + ... + 16976876.

It is an arithmetic number, because the mean of its divisors is an integer number (1234290657600).

It is a 1-persistent number, because it is pandigital, but 2⋅28741586209923 = 57483172419846 is not.

Almost surely, 2^{28741586209923} is an apocalyptic number.

28741586209923 is a deficient number, since it is larger than the sum of its proper divisors (10755714833277).

28741586209923 is a wasteful number, since it uses less digits than its factorization.

28741586209923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787883.

The product of its (nonzero) digits is 104509440, while the sum is 66.

The spelling of 28741586209923 in words is "twenty-eight trillion, seven hundred forty-one billion, five hundred eighty-six million, two hundred nine thousand, nine hundred twenty-three".