68582578 has 4 divisors (see below), whose sum is σ = 102873870. Its totient is φ = 34291288.

The previous prime is 68582567. The next prime is 68582581. The reversal of 68582578 is 87528586.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87528586 = 2 ⋅43764293.

It can be written as a sum of positive squares in only one way, i.e., 64689849 + 3892729 = 8043^2 + 1973^2 .

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, 17145643 + ... + 17145646.

Almost surely, 2^68582578 is an apocalyptic number.

68582578 is a deficient number, since it is larger than the sum of its proper divisors (34291292).

68582578 is a wasteful number, since it uses less digits than its factorization.

68582578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34291291.

The product of its digits is 1075200, while the sum is 49.

The square root of 68582578 is about 8281.4598954532. The cubic root of 68582578 is about 409.3278258327.

The spelling of 68582578 in words is "sixty-eight million, five hundred eighty-two thousand, five hundred seventy-eight".