68512863 has 8 divisors (see below), whose sum is σ = 93819568. Its totient is φ = 44440704.

The previous prime is 68512861. The next prime is 68512891. The reversal of 68512863 is 36821586.

It is a happy number.

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

It is not a de Polignac number, because 68512863 - 2¹ = 68512861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68512861) 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, 308506 + ... + 308727.

It is an arithmetic number, because the mean of its divisors is an integer number (11727446).

Almost surely, 2^68512863 is an apocalyptic number.

68512863 is a deficient number, since it is larger than the sum of its proper divisors (25306705).

68512863 is a wasteful number, since it uses less digits than its factorization.

68512863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617273.

The product of its digits is 69120, while the sum is 39.

The square root of 68512863 is about 8277.2497243952. The cubic root of 68512863 is about 409.1890832889.

The spelling of 68512863 in words is "sixty-eight million, five hundred twelve thousand, eight hundred sixty-three".