68005188734715 has 48 divisors (see below), whose sum is σ = 119209291987968. Its totient is φ = 35861035246848.

The previous prime is 68005188734669. The next prime is 68005188734719. The reversal of 68005188734715 is 51743788150086.

68005188734715 is a `hidden beast` number, since 6 + 8 + 0 + 0 + 518 + 8 + 73 + 47 + 1 + 5 = 666.

It is not a de Polignac number, because 68005188734715 - 2³⁷ = 67867749781243 is a prime.

It is a super-2 number, since 2×68005188734715² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (68005188734719) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18631684 + ... + 21980673.

It is an arithmetic number, because the mean of its divisors is an integer number (2483526916416).

Almost surely, 2^{68005188734715} is an apocalyptic number.

68005188734715 is a deficient number, since it is larger than the sum of its proper divisors (51204103253253).

68005188734715 is a wasteful number, since it uses less digits than its factorization.

68005188734715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40612788 (or 40612785 counting only the distinct ones).

The product of its (nonzero) digits is 45158400, while the sum is 63.

The spelling of 68005188734715 in words is "sixty-eight trillion, five billion, one hundred eighty-eight million, seven hundred thirty-four thousand, seven hundred fifteen".