694505399108 has 12 divisors (see below), whose sum is σ = 1215392042172. Its totient is φ = 347250529920.

The previous prime is 694505399099. The next prime is 694505399123. The reversal of 694505399108 is 801993505496.

It can be written as a sum of positive squares in 2 ways, for example, as 315835008064 + 378670391044 = 561992^2 + 615362^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335816 + ... + 1225472.

It is an arithmetic number, because the mean of its divisors is an integer number (101282670181).

Almost surely, 2^694505399108 is an apocalyptic number.

It is an amenable number.

694505399108 is a deficient number, since it is larger than the sum of its proper divisors (520886643064).

694505399108 is a wasteful number, since it uses less digits than its factorization.

694505399108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084822 (or 1084820 counting only the distinct ones).

The product of its (nonzero) digits is 10497600, while the sum is 59.

The spelling of 694505399108 in words is "six hundred ninety-four billion, five hundred five million, three hundred ninety-nine thousand, one hundred eight".