1815013404142 has 8 divisors (see below), whose sum is σ = 2722527628632. Its totient is φ = 907504194600.

The previous prime is 1815013404119. The next prime is 1815013404199. The reversal of 1815013404142 is 2414043105181.

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

It is a junction number, because it is equal to n+sod(n) for n = 1815013404098 and 1815013404107.

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, 157084 + ... + 1911727.

It is an arithmetic number, because the mean of its divisors is an integer number (340315953579).

Almost surely, 2^{1815013404142} is an apocalyptic number.

1815013404142 is a deficient number, since it is larger than the sum of its proper divisors (907514224490).

1815013404142 is a wasteful number, since it uses less digits than its factorization.

1815013404142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2507474.

The product of its (nonzero) digits is 15360, while the sum is 34.

The spelling of 1815013404142 in words is "one trillion, eight hundred fifteen billion, thirteen million, four hundred four thousand, one hundred forty-two".