68284957771 has 8 divisors (see below), whose sum is σ = 68882607360. Its totient is φ = 67688828328.

The previous prime is 68284957751. The next prime is 68284957817. The reversal of 68284957771 is 17775948286.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68284957771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68284957711) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 289711 + ... + 469576.

It is an arithmetic number, because the mean of its divisors is an integer number (8610325920).

Almost surely, 2^68284957771 is an apocalyptic number.

68284957771 is a deficient number, since it is larger than the sum of its proper divisors (597649589).

68284957771 is a wasteful number, since it uses less digits than its factorization.

68284957771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760073.

The product of its digits is 47416320, while the sum is 64.

The spelling of 68284957771 in words is "sixty-eight billion, two hundred eighty-four million, nine hundred fifty-seven thousand, seven hundred seventy-one".