68140775106 has 48 divisors (see below), whose sum is σ = 150967607544. Its totient is φ = 22204495872.

The previous prime is 68140775093. The next prime is 68140775119. The reversal of 68140775106 is 60157704186.

68140775106 is a `hidden beast` number, since 68 + 1 + 4 + 0 + 77 + 510 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (68140775093) and next prime (68140775119).

It can be written as a sum of positive squares in 4 ways, for example, as 36058591881 + 32082183225 = 189891^2 + 179115^2 .

It is a super-2 number, since 2×68140775106² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135330 + ... + 393186.

Almost surely, 2^68140775106 is an apocalyptic number.

68140775106 is an abundant number, since it is smaller than the sum of its proper divisors (82826832438).

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

68140775106 is a wasteful number, since it uses less digits than its factorization.

68140775106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258195 (or 258192 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The spelling of 68140775106 in words is "sixty-eight billion, one hundred forty million, seven hundred seventy-five thousand, one hundred six".