68261774141 has 8 divisors (see below), whose sum is σ = 74486390400. Its totient is φ = 62040324640.

The previous prime is 68261774137. The next prime is 68261774153. The reversal of 68261774141 is 14147716286.

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

It is a cyclic number.

It is not a de Polignac number, because 68261774141 - 2² = 68261774137 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68261774111) 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, 746501 + ... + 832938.

It is an arithmetic number, because the mean of its divisors is an integer number (9310798800).

Almost surely, 2^68261774141 is an apocalyptic number.

It is an amenable number.

68261774141 is a deficient number, since it is larger than the sum of its proper divisors (6224616259).

68261774141 is a wasteful number, since it uses less digits than its factorization.

68261774141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583379.

The product of its digits is 451584, while the sum is 47.

The spelling of 68261774141 in words is "sixty-eight billion, two hundred sixty-one million, seven hundred seventy-four thousand, one hundred forty-one".