68224451 has 8 divisors (see below), whose sum is σ = 74000304. Its totient is φ = 62644480.

The previous prime is 68224441. The next prime is 68224477. The reversal of 68224451 is 15442286.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68224451 - 2²² = 64030147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68224441) 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, 48245 + ... + 49638.

It is an arithmetic number, because the mean of its divisors is an integer number (9250038).

Almost surely, 2^68224451 is an apocalyptic number.

68224451 is a deficient number, since it is larger than the sum of its proper divisors (5775853).

68224451 is a wasteful number, since it uses less digits than its factorization.

68224451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97941.

The product of its digits is 15360, while the sum is 32.

The square root of 68224451 is about 8259.8093803671. The cubic root of 68224451 is about 408.6141010936.

The spelling of 68224451 in words is "sixty-eight million, two hundred twenty-four thousand, four hundred fifty-one".