85807318353122 has 4 divisors (see below), whose sum is σ = 128710977529686. Its totient is φ = 42903659176560.

The previous prime is 85807318353109. The next prime is 85807318353131. The reversal of 85807318353122 is 22135381370858.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 44595296676841 + 41212021676281 = 6677971^2 + 6419659^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21451829588279 + ... + 21451829588282.

Almost surely, 2^{85807318353122} is an apocalyptic number.

85807318353122 is a deficient number, since it is larger than the sum of its proper divisors (42903659176564).

85807318353122 is a wasteful number, since it uses less digits than its factorization.

85807318353122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42903659176563.

The product of its (nonzero) digits is 9676800, while the sum is 56.

The spelling of 85807318353122 in words is "eighty-five trillion, eight hundred seven billion, three hundred eighteen million, three hundred fifty-three thousand, one hundred twenty-two".