68885619 has 8 divisors (see below), whose sum is σ = 100197312. Its totient is φ = 41748840.

The previous prime is 68885611. The next prime is 68885651. The reversal of 68885619 is 91658886.

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

It is not a de Polignac number, because 68885619 - 2³ = 68885611 is a prime.

It is a super-2 number, since 2×68885619² = 9490457010026322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68885611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1043689 + ... + 1043754.

It is an arithmetic number, because the mean of its divisors is an integer number (12524664).

Almost surely, 2^68885619 is an apocalyptic number.

68885619 is a deficient number, since it is larger than the sum of its proper divisors (31311693).

68885619 is a wasteful number, since it uses less digits than its factorization.

68885619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2087457.

The product of its digits is 829440, while the sum is 51.

The square root of 68885619 is about 8299.7360801413. The cubic root of 68885619 is about 409.9298293554.

The spelling of 68885619 in words is "sixty-eight million, eight hundred eighty-five thousand, six hundred nineteen".