68225284457 has 16 divisors (see below), whose sum is σ = 75344290560. Its totient is φ = 61259461200.

The previous prime is 68225284447. The next prime is 68225284513. The reversal of 68225284457 is 75448252286.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68225284457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68225284399 and 68225284408.

It is not an unprimeable number, because it can be changed into a prime (68225284447) 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, 4611482 + ... + 4626252.

It is an arithmetic number, because the mean of its divisors is an integer number (4709018160).

Almost surely, 2^68225284457 is an apocalyptic number.

It is an amenable number.

68225284457 is a deficient number, since it is larger than the sum of its proper divisors (7119006103).

68225284457 is a wasteful number, since it uses less digits than its factorization.

68225284457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19924.

The product of its digits is 8601600, while the sum is 53.

The spelling of 68225284457 in words is "sixty-eight billion, two hundred twenty-five million, two hundred eighty-four thousand, four hundred fifty-seven".