85109068628446 has 4 divisors (see below), whose sum is σ = 127663602942672. Its totient is φ = 42554534314222.

The previous prime is 85109068628357. The next prime is 85109068628539. The reversal of 85109068628446 is 64482686090158.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21277267157110 + ... + 21277267157113.

It is an arithmetic number, because the mean of its divisors is an integer number (31915900735668).

Almost surely, 2^{85109068628446} is an apocalyptic number.

85109068628446 is a deficient number, since it is larger than the sum of its proper divisors (42554534314226).

85109068628446 is a wasteful number, since it uses less digits than its factorization.

85109068628446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42554534314225.

The product of its (nonzero) digits is 159252480, while the sum is 67.

The spelling of 85109068628446 in words is "eighty-five trillion, one hundred nine billion, sixty-eight million, six hundred twenty-eight thousand, four hundred forty-six".