68123975377905 has 48 divisors (see below), whose sum is σ = 120276539475456. Its totient is φ = 35659980639360.

The previous prime is 68123975377897. The next prime is 68123975377921. The reversal of 68123975377905 is 50977357932186.

68123975377905 is a `hidden beast` number, since 6 + 8 + 12 + 3 + 9 + 7 + 537 + 79 + 0 + 5 = 666.

It is not a de Polignac number, because 68123975377905 - 2³ = 68123975377897 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25529797 + ... + 28071666.

It is an arithmetic number, because the mean of its divisors is an integer number (2505761239072).

Almost surely, 2^{68123975377905} is an apocalyptic number.

It is an amenable number.

68123975377905 is a deficient number, since it is larger than the sum of its proper divisors (52152564097551).

68123975377905 is a wasteful number, since it uses less digits than its factorization.

68123975377905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53601998 (or 53601995 counting only the distinct ones).

The product of its (nonzero) digits is 600112800, while the sum is 72.

The spelling of 68123975377905 in words is "sixty-eight trillion, one hundred twenty-three billion, nine hundred seventy-five million, three hundred seventy-seven thousand, nine hundred five".