68612453 has 8 divisors (see below), whose sum is σ = 84446208. Its totient is φ = 54286704.

The previous prime is 68612449. The next prime is 68612471. The reversal of 68612453 is 35421686.

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 68612453 - 2² = 68612449 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68612413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376901 + ... + 377082.

It is an arithmetic number, because the mean of its divisors is an integer number (10555776).

Almost surely, 2^68612453 is an apocalyptic number.

It is an amenable number.

68612453 is a deficient number, since it is larger than the sum of its proper divisors (15833755).

68612453 is a wasteful number, since it uses less digits than its factorization.

68612453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754003.

The product of its digits is 34560, while the sum is 35.

The square root of 68612453 is about 8283.2634269351. The cubic root of 68612453 is about 409.3872524585.

The spelling of 68612453 in words is "sixty-eight million, six hundred twelve thousand, four hundred fifty-three".