68509464199 has 6 divisors (see below), whose sum is σ = 75303791360. Its totient is φ = 62281330980.

The previous prime is 68509464197. The next prime is 68509464241. The reversal of 68509464199 is 99146490586.

It is not a de Polignac number, because 68509464199 - 2¹ = 68509464197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68509464197) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 283096839 + ... + 283097080.

Almost surely, 2^68509464199 is an apocalyptic number.

68509464199 is a deficient number, since it is larger than the sum of its proper divisors (6794327161).

68509464199 is a wasteful number, since it uses less digits than its factorization.

68509464199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566193941 (or 566193930 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 61.

The spelling of 68509464199 in words is "sixty-eight billion, five hundred nine million, four hundred sixty-four thousand, one hundred ninety-nine".