68253279825 has 12 divisors (see below), whose sum is σ = 112845422768. Its totient is φ = 36401749200.

The previous prime is 68253279749. The next prime is 68253279839. The reversal of 68253279825 is 52897235286.

It is a happy number.

It is not a de Polignac number, because 68253279825 - 2⁹ = 68253279313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 455021791 + ... + 455021940.

Almost surely, 2^68253279825 is an apocalyptic number.

It is an amenable number.

68253279825 is a deficient number, since it is larger than the sum of its proper divisors (44592142943).

68253279825 is a wasteful number, since it uses less digits than its factorization.

68253279825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910043744 (or 910043739 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 57.

The spelling of 68253279825 in words is "sixty-eight billion, two hundred fifty-three million, two hundred seventy-nine thousand, eight hundred twenty-five".