68544472 has 16 divisors (see below), whose sum is σ = 132667200. Its totient is φ = 33166560.

The previous prime is 68544449. The next prime is 68544547. The reversal of 68544472 is 27444586.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137947 + ... + 138442.

It is an arithmetic number, because the mean of its divisors is an integer number (8291700).

Almost surely, 2^68544472 is an apocalyptic number.

68544472 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

68544472 is a deficient number, since it is larger than the sum of its proper divisors (64122728).

68544472 is a wasteful number, since it uses less digits than its factorization.

68544472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276426 (or 276422 counting only the distinct ones).

The product of its digits is 215040, while the sum is 40.

The square root of 68544472 is about 8279.1588944771. The cubic root of 68544472 is about 409.2520012510.

The spelling of 68544472 in words is "sixty-eight million, five hundred forty-four thousand, four hundred seventy-two".