68881063 has 4 divisors (see below), whose sum is σ = 68927248. Its totient is φ = 68834880.

The previous prime is 68881049. The next prime is 68881103. The reversal of 68881063 is 36018886.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68881063 - 2⁵ = 68881031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68881363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20778 + ... + 23863.

It is an arithmetic number, because the mean of its divisors is an integer number (17231812).

Almost surely, 2^68881063 is an apocalyptic number.

68881063 is a deficient number, since it is larger than the sum of its proper divisors (46185).

68881063 is a wasteful number, since it uses less digits than its factorization.

68881063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46184.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 68881063 is about 8299.4616090443. The cubic root of 68881063 is about 409.9207917580.

The spelling of 68881063 in words is "sixty-eight million, eight hundred eighty-one thousand, sixty-three".