68672578 has 32 divisors (see below), whose sum is σ = 114307200. Its totient is φ = 30746496.

The previous prime is 68672563. The next prime is 68672579. The reversal of 68672578 is 87527686.

68672578 is nontrivially palindromic in base 3.

It is a super-3 number, since 3×68672578³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (68672579) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136275 + ... + 136777.

It is an arithmetic number, because the mean of its divisors is an integer number (3572100).

Almost surely, 2^68672578 is an apocalyptic number.

68672578 is a deficient number, since it is larger than the sum of its proper divisors (45634622).

68672578 is a wasteful number, since it uses less digits than its factorization.

68672578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666.

The product of its digits is 1128960, while the sum is 49.

The square root of 68672578 is about 8286.8919384773. The cubic root of 68672578 is about 409.5067993780.

The spelling of 68672578 in words is "sixty-eight million, six hundred seventy-two thousand, five hundred seventy-eight".