68648678 has 24 divisors (see below), whose sum is σ = 120665136. Its totient is φ = 28693440.

The previous prime is 68648651. The next prime is 68648731. The reversal of 68648678 is 87684686.

It is a happy number.

It is a super-2 number, since 2×68648678² = 9425281982295368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22076 + ... + 24992.

It is an arithmetic number, because the mean of its divisors is an integer number (5027714).

Almost surely, 2^68648678 is an apocalyptic number.

68648678 is a deficient number, since it is larger than the sum of its proper divisors (52016458).

68648678 is a wasteful number, since it uses less digits than its factorization.

68648678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3008 (or 2967 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 53.

The square root of 68648678 is about 8285.4497765661. The cubic root of 68648678 is about 409.4592872151.

The spelling of 68648678 in words is "sixty-eight million, six hundred forty-eight thousand, six hundred seventy-eight".