68644412 has 6 divisors (see below), whose sum is σ = 120127728. Its totient is φ = 34322204.

The previous prime is 68644409. The next prime is 68644423. The reversal of 68644412 is 21444686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8580548 + ... + 8580555.

It is an arithmetic number, because the mean of its divisors is an integer number (20021288).

Almost surely, 2^68644412 is an apocalyptic number.

It is an amenable number.

68644412 is a deficient number, since it is larger than the sum of its proper divisors (51483316).

68644412 is a wasteful number, since it uses less digits than its factorization.

68644412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17161107 (or 17161105 counting only the distinct ones).

The product of its digits is 36864, while the sum is 35.

The square root of 68644412 is about 8285.1923333137. The cubic root of 68644412 is about 409.4508054325.

It can be divided in two parts, 686444 and 12, that multiplied together give a palindrome (8237328).

The spelling of 68644412 in words is "sixty-eight million, six hundred forty-four thousand, four hundred twelve".