85626807949 has 2 divisors, whose sum is σ = 85626807950. Its totient is φ = 85626807948.

The previous prime is 85626807941. The next prime is 85626808039. The reversal of 85626807949 is 94970862658.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65602576900 + 20024231049 = 256130^2 + 141507^2 .

It is a cyclic number.

It is not a de Polignac number, because 85626807949 - 2³ = 85626807941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85626807941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42813403974 + 42813403975.

It is an arithmetic number, because the mean of its divisors is an integer number (42813403975).

Almost surely, 2^85626807949 is an apocalyptic number.

It is an amenable number.

85626807949 is a deficient number, since it is larger than the sum of its proper divisors (1).

85626807949 is an equidigital number, since it uses as much as digits as its factorization.

85626807949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52254720, while the sum is 64.

The spelling of 85626807949 in words is "eighty-five billion, six hundred twenty-six million, eight hundred seven thousand, nine hundred forty-nine".