281889140420306 has 16 divisors (see below), whose sum is σ = 423141706728000. Its totient is φ = 140841913151088.

The previous prime is 281889140420287. The next prime is 281889140420317. The reversal of 281889140420306 is 603024041988182.

It is a super-2 number, since 2×281889140420306² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66214016 + ... + 70342548.

It is an arithmetic number, because the mean of its divisors is an integer number (26446356670500).

Almost surely, 2^{281889140420306} is an apocalyptic number.

281889140420306 is a deficient number, since it is larger than the sum of its proper divisors (141252566307694).

281889140420306 is a wasteful number, since it uses less digits than its factorization.

281889140420306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4153393.

The product of its (nonzero) digits is 5308416, while the sum is 56.

The spelling of 281889140420306 in words is "two hundred eighty-one trillion, eight hundred eighty-nine billion, one hundred forty million, four hundred twenty thousand, three hundred six".