68396019 has 8 divisors (see below), whose sum is σ = 91741440. Its totient is φ = 45323976.

The previous prime is 68395993. The next prime is 68396021. The reversal of 68396019 is 91069386.

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

It is not a de Polignac number, because 68396019 - 2¹¹ = 68393971 is a prime.

It is a super-2 number, since 2×68396019² = 9356030830096722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (68396059) 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, 67759 + ... + 68760.

It is an arithmetic number, because the mean of its divisors is an integer number (11467680).

Almost surely, 2^68396019 is an apocalyptic number.

68396019 is a deficient number, since it is larger than the sum of its proper divisors (23345421).

68396019 is a wasteful number, since it uses less digits than its factorization.

68396019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136689.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 68396019 is about 8270.1885710061. The cubic root of 68396019 is about 408.9563362661.

The spelling of 68396019 in words is "sixty-eight million, three hundred ninety-six thousand, nineteen".