68404289210 has 16 divisors (see below), whose sum is σ = 123207237000. Its totient is φ = 27344045376.

The previous prime is 68404289183. The next prime is 68404289221. The reversal of 68404289210 is 1298240486.

It can be written as a sum of positive squares in 4 ways, for example, as 30572872201 + 37831417009 = 174851^2 + 194503^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2192525 + ... + 2223504.

Almost surely, 2^68404289210 is an apocalyptic number.

68404289210 is a deficient number, since it is larger than the sum of its proper divisors (54802947790).

68404289210 is a wasteful number, since it uses less digits than its factorization.

68404289210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4417585.

The product of its (nonzero) digits is 221184, while the sum is 44.

The spelling of 68404289210 in words is "sixty-eight billion, four hundred four million, two hundred eighty-nine thousand, two hundred ten".