68144568 has 32 divisors (see below), whose sum is σ = 180383760. Its totient is φ = 21378560.

The previous prime is 68144567. The next prime is 68144569. The reversal of 68144568 is 86544186.

It is an interprime number because it is at equal distance from previous prime (68144567) and next prime (68144569).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68144567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83103 + ... + 83918.

Almost surely, 2^68144568 is an apocalyptic number.

68144568 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

68144568 is an abundant number, since it is smaller than the sum of its proper divisors (112239192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68144568 is a wasteful number, since it uses less digits than its factorization.

68144568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167047 (or 167043 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 68144568 is about 8254.9723197598. The cubic root of 68144568 is about 408.4545587409.

The spelling of 68144568 in words is "sixty-eight million, one hundred forty-four thousand, five hundred sixty-eight".