68668954 has 4 divisors (see below), whose sum is σ = 103003434. Its totient is φ = 34334476.

The previous prime is 68668949. The next prime is 68668997. The reversal of 68668954 is 45986686.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45986686 = 2 ⋅22993343.

It can be written as a sum of positive squares in only one way, i.e., 59830225 + 8838729 = 7735^2 + 2973^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17167237 + ... + 17167240.

Almost surely, 2^68668954 is an apocalyptic number.

68668954 is a deficient number, since it is larger than the sum of its proper divisors (34334480).

68668954 is a wasteful number, since it uses less digits than its factorization.

68668954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34334479.

The product of its digits is 2488320, while the sum is 52.

The square root of 68668954 is about 8286.6732770153. The cubic root of 68668954 is about 409.4995957324.

The spelling of 68668954 in words is "sixty-eight million, six hundred sixty-eight thousand, nine hundred fifty-four".