68395313545 has 16 divisors (see below), whose sum is σ = 88407728640. Its totient is φ = 50495914944.

The previous prime is 68395313543. The next prime is 68395313549. The reversal of 68395313545 is 54531359386.

It is a cyclic number.

It is not a de Polignac number, because 68395313545 - 2¹ = 68395313543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68395313492 and 68395313501.

It is not an unprimeable number, because it can be changed into a prime (68395313543) 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, 177312 + ... + 410158.

It is an arithmetic number, because the mean of its divisors is an integer number (5525483040).

Almost surely, 2^68395313545 is an apocalyptic number.

68395313545 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

68395313545 is a deficient number, since it is larger than the sum of its proper divisors (20012415095).

68395313545 is a wasteful number, since it uses less digits than its factorization.

68395313545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237384.

The product of its digits is 5832000, while the sum is 52.

The spelling of 68395313545 in words is "sixty-eight billion, three hundred ninety-five million, three hundred thirteen thousand, five hundred forty-five".