68045370625 has 20 divisors (see below), whose sum is σ = 88726448448. Its totient is φ = 52069490000.

The previous prime is 68045370623. The next prime is 68045370647. The reversal of 68045370625 is 52607354086.

It is not a de Polignac number, because 68045370625 - 2¹ = 68045370623 is a prime.

It is a super-2 number, since 2×68045370625² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68045370623) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2352421 + ... + 2381170.

Almost surely, 2^68045370625 is an apocalyptic number.

It is an amenable number.

68045370625 is a deficient number, since it is larger than the sum of its proper divisors (20681077823).

68045370625 is an equidigital number, since it uses as much as digits as its factorization.

68045370625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4733634 (or 4733619 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 68045370625 in words is "sixty-eight billion, forty-five million, three hundred seventy thousand, six hundred twenty-five".