68369819 has 8 divisors (see below), whose sum is σ = 79799808. Its totient is φ = 57355560.

The previous prime is 68369813. The next prime is 68369857. The reversal of 68369819 is 91896386.

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 68369819 - 2¹² = 68365723 is a prime.

It is a super-2 number, since 2×68369819² = 9348864300185522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68369813) 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, 103577 + ... + 104234.

It is an arithmetic number, because the mean of its divisors is an integer number (9974976).

Almost surely, 2^68369819 is an apocalyptic number.

68369819 is a deficient number, since it is larger than the sum of its proper divisors (11429989).

68369819 is a wasteful number, since it uses less digits than its factorization.

68369819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207865.

The product of its digits is 559872, while the sum is 50.

The square root of 68369819 is about 8268.6044167078. The cubic root of 68369819 is about 408.9041108852.

The spelling of 68369819 in words is "sixty-eight million, three hundred sixty-nine thousand, eight hundred nineteen".