68253217371 has 6 divisors (see below), whose sum is σ = 98587980660. Its totient is φ = 45502144908.

The previous prime is 68253217367. The next prime is 68253217423. The reversal of 68253217371 is 17371235286.

68253217371 is a `hidden beast` number, since 6 + 8 + 253 + 21 + 7 + 371 = 666.

It is not a de Polignac number, because 68253217371 - 2² = 68253217367 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68253217471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3791845401 + ... + 3791845418.

It is an arithmetic number, because the mean of its divisors is an integer number (16431330110).

Almost surely, 2^68253217371 is an apocalyptic number.

68253217371 is a deficient number, since it is larger than the sum of its proper divisors (30334763289).

68253217371 is a wasteful number, since it uses less digits than its factorization.

68253217371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7583690825 (or 7583690822 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The spelling of 68253217371 in words is "sixty-eight billion, two hundred fifty-three million, two hundred seventeen thousand, three hundred seventy-one".