68151378 has 16 divisors (see below), whose sum is σ = 137554560. Its totient is φ = 22508496.

The previous prime is 68151371. The next prime is 68151379. The reversal of 68151378 is 87315186.

It is a super-3 number, since 3×68151378³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (68151371) 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, 51450 + ... + 52757.

It is an arithmetic number, because the mean of its divisors is an integer number (8597160).

Almost surely, 2^68151378 is an apocalyptic number.

68151378 is an abundant number, since it is smaller than the sum of its proper divisors (69403182).

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

68151378 is a wasteful number, since it uses less digits than its factorization.

68151378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104321.

The product of its digits is 40320, while the sum is 39.

The square root of 68151378 is about 8255.3847881247. The cubic root of 68151378 is about 408.4681645350.

The spelling of 68151378 in words is "sixty-eight million, one hundred fifty-one thousand, three hundred seventy-eight".