85901548673 has 2 divisors, whose sum is σ = 85901548674. Its totient is φ = 85901548672.

The previous prime is 85901548633. The next prime is 85901548687. The reversal of 85901548673 is 37684510958.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47738754064 + 38162794609 = 218492^2 + 195353^2 .

It is a cyclic number.

It is not a de Polignac number, because 85901548673 - 2¹⁰ = 85901547649 is a prime.

It is not a weakly prime, because it can be changed into another prime (85901548633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42950774336 + 42950774337.

It is an arithmetic number, because the mean of its divisors is an integer number (42950774337).

Almost surely, 2^85901548673 is an apocalyptic number.

It is an amenable number.

85901548673 is a deficient number, since it is larger than the sum of its proper divisors (1).

85901548673 is an equidigital number, since it uses as much as digits as its factorization.

85901548673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7257600, while the sum is 56.

The spelling of 85901548673 in words is "eighty-five billion, nine hundred one million, five hundred forty-eight thousand, six hundred seventy-three".