68081467474 has 4 divisors (see below), whose sum is σ = 102122201214. Its totient is φ = 34040733736.

The previous prime is 68081467453. The next prime is 68081467499. The reversal of 68081467474 is 47476418086.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47476418086 = 2 ⋅23738209043.

It can be written as a sum of positive squares in only one way, i.e., 51480433449 + 16601034025 = 226893^2 + 128845^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17020366867 + ... + 17020366870.

Almost surely, 2^68081467474 is an apocalyptic number.

68081467474 is a deficient number, since it is larger than the sum of its proper divisors (34040733740).

68081467474 is a wasteful number, since it uses less digits than its factorization.

68081467474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34040733739.

The product of its (nonzero) digits is 7225344, while the sum is 55.

The spelling of 68081467474 in words is "sixty-eight billion, eighty-one million, four hundred sixty-seven thousand, four hundred seventy-four".