68041498109 has 8 divisors (see below), whose sum is σ = 73303453272. Its totient is φ = 62783542080.

The previous prime is 68041498093. The next prime is 68041498171. The reversal of 68041498109 is 90189414086.

It can be written as a sum of positive squares in 4 ways, for example, as 24309487225 + 43732010884 = 155915^2 + 209122^2 .

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 68041498109 - 2⁴ = 68041498093 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 (68041498909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 964394 + ... + 1032539.

It is an arithmetic number, because the mean of its divisors is an integer number (9162931659).

Almost surely, 2^68041498109 is an apocalyptic number.

It is an amenable number.

68041498109 is a deficient number, since it is larger than the sum of its proper divisors (5261955163).

68041498109 is a wasteful number, since it uses less digits than its factorization.

68041498109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999567.

The product of its (nonzero) digits is 497664, while the sum is 50.

The spelling of 68041498109 in words is "sixty-eight billion, forty-one million, four hundred ninety-eight thousand, one hundred nine".