68280221704735 has 8 divisors (see below), whose sum is σ = 81987253153056. Its totient is φ = 54590185958880.

The previous prime is 68280221704727. The next prime is 68280221704787. The reversal of 68280221704735 is 53740712208286.

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

It is not a de Polignac number, because 68280221704735 - 2³ = 68280221704727 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 4248916776 + ... + 4248932845.

It is an arithmetic number, because the mean of its divisors is an integer number (10248406644132).

Almost surely, 2^{68280221704735} is an apocalyptic number.

68280221704735 is a deficient number, since it is larger than the sum of its proper divisors (13707031448321).

68280221704735 is a wasteful number, since it uses less digits than its factorization.

68280221704735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8497851233.

The product of its (nonzero) digits is 9031680, while the sum is 55.

The spelling of 68280221704735 in words is "sixty-eight trillion, two hundred eighty billion, two hundred twenty-one million, seven hundred four thousand, seven hundred thirty-five".