68478163 has 16 divisors (see below), whose sum is σ = 76496896. Its totient is φ = 60873120.

The previous prime is 68478143. The next prime is 68478167. The reversal of 68478163 is 36187486.

It is a cyclic number.

It is not a de Polignac number, because 68478163 - 2⁵ = 68478131 is a prime.

It is a super-3 number, since 3×68478163³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68478167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147670 + ... + 148132.

It is an arithmetic number, because the mean of its divisors is an integer number (4781056).

Almost surely, 2^68478163 is an apocalyptic number.

68478163 is a deficient number, since it is larger than the sum of its proper divisors (8018733).

68478163 is a wasteful number, since it uses less digits than its factorization.

68478163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874.

The product of its digits is 193536, while the sum is 43.

The square root of 68478163 is about 8275.1533520534. The cubic root of 68478163 is about 409.1199903801.

The spelling of 68478163 in words is "sixty-eight million, four hundred seventy-eight thousand, one hundred sixty-three".