68209049045 has 8 divisors (see below), whose sum is σ = 81852283296. Its totient is φ = 54566289616.

The previous prime is 68209049033. The next prime is 68209049053. The reversal of 68209049045 is 54094090286.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68209049045 - 2²⁸ = 67940613589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417674 + ... + 557556.

It is an arithmetic number, because the mean of its divisors is an integer number (10231535412).

Almost surely, 2^68209049045 is an apocalyptic number.

It is an amenable number.

68209049045 is a deficient number, since it is larger than the sum of its proper divisors (13643234251).

68209049045 is a wasteful number, since it uses less digits than its factorization.

68209049045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237411.

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 68209049045 in words is "sixty-eight billion, two hundred nine million, forty-nine thousand, forty-five".