68178445754 has 4 divisors (see below), whose sum is σ = 102267668634. Its totient is φ = 34089222876.

The previous prime is 68178445739. The next prime is 68178445771. The reversal of 68178445754 is 45754487186.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45754487186 = 2 ⋅22877243593.

It can be written as a sum of positive squares in only one way, i.e., 67265016025 + 913429729 = 259355^2 + 30223^2 .

It is a super-2 number, since 2×68178445754² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68178445693 and 68178445702.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17044611437 + ... + 17044611440.

Almost surely, 2^68178445754 is an apocalyptic number.

68178445754 is a deficient number, since it is larger than the sum of its proper divisors (34089222880).

68178445754 is a wasteful number, since it uses less digits than its factorization.

68178445754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34089222879.

The product of its digits is 30105600, while the sum is 59.

The spelling of 68178445754 in words is "sixty-eight billion, one hundred seventy-eight million, four hundred forty-five thousand, seven hundred fifty-four".