281506104756242 has 8 divisors (see below), whose sum is σ = 422260913093232. Its totient is φ = 140752467058500.

The previous prime is 281506104756181. The next prime is 281506104756251. The reversal of 281506104756242 is 242657401605182.

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

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, 292058384 + ... + 293020667.

It is an arithmetic number, because the mean of its divisors is an integer number (52782614136654).

Almost surely, 2^{281506104756242} is an apocalyptic number.

281506104756242 is a deficient number, since it is larger than the sum of its proper divisors (140754808336990).

281506104756242 is a wasteful number, since it uses less digits than its factorization.

281506104756242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585319624.

The product of its (nonzero) digits is 6451200, while the sum is 53.

The spelling of 281506104756242 in words is "two hundred eighty-one trillion, five hundred six billion, one hundred four million, seven hundred fifty-six thousand, two hundred forty-two".