68644612 has 24 divisors (see below), whose sum is σ = 122915520. Its totient is φ = 33533280.

The previous prime is 68644607. The next prime is 68644613. The reversal of 68644612 is 21644686.

It is not an unprimeable number, because it can be changed into a prime (68644613) 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, 41913 + ... + 43519.

It is an arithmetic number, because the mean of its divisors is an integer number (5121480).

Almost surely, 2^68644612 is an apocalyptic number.

It is an amenable number.

68644612 is a deficient number, since it is larger than the sum of its proper divisors (54270908).

68644612 is a wasteful number, since it uses less digits than its factorization.

68644612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851 (or 1849 counting only the distinct ones).

The product of its digits is 55296, while the sum is 37.

The square root of 68644612 is about 8285.2044030307. The cubic root of 68644612 is about 409.4512030860.

It can be divided in two parts, 6864 and 4612, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 68644612 in words is "sixty-eight million, six hundred forty-four thousand, six hundred twelve".