28713186301891 has 16 divisors (see below), whose sum is σ = 36557902987200. Its totient is φ = 21934741788288.

The previous prime is 28713186301769. The next prime is 28713186301927. The reversal of 28713186301891 is 19810368131782.

It is not a de Polignac number, because 28713186301891 - 2²³ = 28713177913283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28713186301991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5440161496 + ... + 5440166773.

It is an arithmetic number, because the mean of its divisors is an integer number (2284868936700).

Almost surely, 2^{28713186301891} is an apocalyptic number.

28713186301891 is a deficient number, since it is larger than the sum of its proper divisors (7844716685309).

28713186301891 is a wasteful number, since it uses less digits than its factorization.

28713186301891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10880328318.

The product of its (nonzero) digits is 3483648, while the sum is 58.

The spelling of 28713186301891 in words is "twenty-eight trillion, seven hundred thirteen billion, one hundred eighty-six million, three hundred one thousand, eight hundred ninety-one".