68641774 has 4 divisors (see below), whose sum is σ = 102962664. Its totient is φ = 34320886.

The previous prime is 68641751. The next prime is 68641777. The reversal of 68641774 is 47714686.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 68641774.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68641777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17160442 + ... + 17160445.

It is an arithmetic number, because the mean of its divisors is an integer number (25740666).

Almost surely, 2^68641774 is an apocalyptic number.

68641774 is a deficient number, since it is larger than the sum of its proper divisors (34320890).

68641774 is a wasteful number, since it uses less digits than its factorization.

68641774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34320889.

The product of its digits is 225792, while the sum is 43.

The square root of 68641774 is about 8285.0331321003. The cubic root of 68641774 is about 409.4455603099.

The spelling of 68641774 in words is "sixty-eight million, six hundred forty-one thousand, seven hundred seventy-four".