68148818747874 has 24 divisors (see below), whose sum is σ = 147976068492252. Its totient is φ = 22666996833120.

The previous prime is 68148818747869. The next prime is 68148818747917. The reversal of 68148818747874 is 47874781884186.

68148818747874 is a `hidden beast` number, since 6 + 8 + 1 + 488 + 18 + 7 + 47 + 87 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 66620611001025 + 1528207746849 = 8162145^2 + 1236207^2 .

It is a super-2 number, since 2×68148818747874² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68148818747793 and 68148818747802.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4106331709 + ... + 4106348304.

Almost surely, 2^{68148818747874} is an apocalyptic number.

68148818747874 is an abundant number, since it is smaller than the sum of its proper divisors (79827249744378).

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

68148818747874 is a wasteful number, since it uses less digits than its factorization.

68148818747874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8212680482 (or 8212680479 counting only the distinct ones).

The product of its digits is 4315938816, while the sum is 81.

The spelling of 68148818747874 in words is "sixty-eight trillion, one hundred forty-eight billion, eight hundred eighteen million, seven hundred forty-seven thousand, eight hundred seventy-four".