68705526123 has 24 divisors (see below), whose sum is σ = 107067241008. Its totient is φ = 42204376512.

The previous prime is 68705526103. The next prime is 68705526139. The reversal of 68705526123 is 32162550786.

68705526123 is a `hidden beast` number, since 6 + 8 + 70 + 552 + 6 + 1 + 23 = 666.

It is not a de Polignac number, because 68705526123 - 2⁵ = 68705526091 is a prime.

It is a super-2 number, since 2×68705526123² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68705526103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 461965 + ... + 592302.

It is an arithmetic number, because the mean of its divisors is an integer number (4461135042).

Almost surely, 2^68705526123 is an apocalyptic number.

68705526123 is a deficient number, since it is larger than the sum of its proper divisors (38361714885).

68705526123 is a wasteful number, since it uses less digits than its factorization.

68705526123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054843 (or 1054840 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 68705526123 in words is "sixty-eight billion, seven hundred five million, five hundred twenty-six thousand, one hundred twenty-three".