85751726887 has 2 divisors, whose sum is σ = 85751726888. Its totient is φ = 85751726886.

The previous prime is 85751726857. The next prime is 85751726897. The reversal of 85751726887 is 78862715758.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85751726887 - 2¹⁹ = 85751202599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85751726857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42875863443 + 42875863444.

It is an arithmetic number, because the mean of its divisors is an integer number (42875863444).

Almost surely, 2^85751726887 is an apocalyptic number.

85751726887 is a deficient number, since it is larger than the sum of its proper divisors (1).

85751726887 is an equidigital number, since it uses as much as digits as its factorization.

85751726887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52684800, while the sum is 64.

The spelling of 85751726887 in words is "eighty-five billion, seven hundred fifty-one million, seven hundred twenty-six thousand, eight hundred eighty-seven".