1018684861422 has 8 divisors (see below), whose sum is σ = 2037369722856. Its totient is φ = 339561620472.

The previous prime is 1018684861409. The next prime is 1018684861541. The reversal of 1018684861422 is 2241684868101.

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

1018684861422 is an admirable number.

It is a congruent number.

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, 84890405113 + ... + 84890405124.

It is an arithmetic number, because the mean of its divisors is an integer number (254671215357).

Almost surely, 2^{1018684861422} is an apocalyptic number.

1018684861422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1018684861422 is a wasteful number, since it uses less digits than its factorization.

1018684861422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169780810242.

The product of its (nonzero) digits is 1179648, while the sum is 51.

The spelling of 1018684861422 in words is "one trillion, eighteen billion, six hundred eighty-four million, eight hundred sixty-one thousand, four hundred twenty-two".