68414647025 has 6 divisors (see below), whose sum is σ = 84834162342. Its totient is φ = 54731717600.

The previous prime is 68414647013. The next prime is 68414647057. The reversal of 68414647025 is 52074641486.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 798006001 + 67616641024 = 28249^2 + 260032^2 .

It is not a de Polignac number, because 68414647025 - 2¹² = 68414642929 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 (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1368292916 + ... + 1368292965.

It is an arithmetic number, because the mean of its divisors is an integer number (14139027057).

Almost surely, 2^68414647025 is an apocalyptic number.

It is an amenable number.

68414647025 is a deficient number, since it is larger than the sum of its proper divisors (16419515317).

68414647025 is a wasteful number, since it uses less digits than its factorization.

68414647025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2736585891 (or 2736585886 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 47.

The spelling of 68414647025 in words is "sixty-eight billion, four hundred fourteen million, six hundred forty-seven thousand, twenty-five".