68518747 has 8 divisors (see below), whose sum is σ = 74919600. Its totient is φ = 62146560.

The previous prime is 68518739. The next prime is 68518777. The reversal of 68518747 is 74781586.

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

It is a cyclic number.

It is not a de Polignac number, because 68518747 - 2³ = 68518739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68518697 and 68518706.

It is not an unprimeable number, because it can be changed into a prime (68518727) 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, 1998 + ... + 11875.

It is an arithmetic number, because the mean of its divisors is an integer number (9364950).

Almost surely, 2^68518747 is an apocalyptic number.

68518747 is a deficient number, since it is larger than the sum of its proper divisors (6400853).

68518747 is a wasteful number, since it uses less digits than its factorization.

68518747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14333.

The product of its digits is 376320, while the sum is 46.

The square root of 68518747 is about 8277.6051488338. The cubic root of 68518747 is about 409.2007969026.

It can be divided in two parts, 68 and 518747, that added together give a palindrome (518815).

The spelling of 68518747 in words is "sixty-eight million, five hundred eighteen thousand, seven hundred forty-seven".