68619378 has 32 divisors (see below), whose sum is σ = 145725696. Its totient is φ = 21466368.

The previous prime is 68619377. The next prime is 68619391. The reversal of 68619378 is 87391686.

It is not an unprimeable number, because it can be changed into a prime (68619377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46500 + ... + 47952.

It is an arithmetic number, because the mean of its divisors is an integer number (4553928).

Almost surely, 2^68619378 is an apocalyptic number.

68619378 is an abundant number, since it is smaller than the sum of its proper divisors (77106318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68619378 is a wasteful number, since it uses less digits than its factorization.

68619378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1938.

The product of its digits is 435456, while the sum is 48.

The square root of 68619378 is about 8283.6814279643. The cubic root of 68619378 is about 409.4010250378.

The spelling of 68619378 in words is "sixty-eight million, six hundred nineteen thousand, three hundred seventy-eight".