68544474 has 16 divisors (see below), whose sum is σ = 137308608. Its totient is φ = 22811552.

The previous prime is 68544449. The next prime is 68544547. The reversal of 68544474 is 47444586.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4947 + ... + 12710.

It is an arithmetic number, because the mean of its divisors is an integer number (8581788).

Almost surely, 2^68544474 is an apocalyptic number.

68544474 is an abundant number, since it is smaller than the sum of its proper divisors (68764134).

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

68544474 is a wasteful number, since it uses less digits than its factorization.

68544474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18309.

The product of its digits is 430080, while the sum is 42.

The square root of 68544474 is about 8279.1590152624. The cubic root of 68544474 is about 409.2520052314.

The spelling of 68544474 in words is "sixty-eight million, five hundred forty-four thousand, four hundred seventy-four".