68871068826534 has 144 divisors (see below), whose sum is σ = 163280782173600. Its totient is φ = 20853411828480.

The previous prime is 68871068826479. The next prime is 68871068826601. The reversal of 68871068826534 is 43562886017886.

68871068826534 is a `hidden beast` number, since 6 + 8 + 8 + 7 + 1 + 0 + 6 + 8 + 82 + 6 + 534 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 927157207 + ... + 927231485.

It is an arithmetic number, because the mean of its divisors is an integer number (1133894320650).

Almost surely, 2^{68871068826534} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68871068826534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81640391086800).

68871068826534 is an abundant number, since it is smaller than the sum of its proper divisors (94409713347066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68871068826534 is a wasteful number, since it uses less digits than its factorization.

68871068826534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74811 (or 74597 counting only the distinct ones).

The product of its (nonzero) digits is 743178240, while the sum is 72.

The spelling of 68871068826534 in words is "sixty-eight trillion, eight hundred seventy-one billion, sixty-eight million, eight hundred twenty-six thousand, five hundred thirty-four".