815547481342 has 8 divisors (see below), whose sum is σ = 1334532242232. Its totient is φ = 370703400600.

The previous prime is 815547481261. The next prime is 815547481361. The reversal of 815547481342 is 243184745518.

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

It is a self number, because there is not a number n which added to its sum of digits gives 815547481342.

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, 18535170009 + ... + 18535170052.

It is an arithmetic number, because the mean of its divisors is an integer number (166816530279).

Almost surely, 2^815547481342 is an apocalyptic number.

815547481342 is a deficient number, since it is larger than the sum of its proper divisors (518984760890).

815547481342 is a wasteful number, since it uses less digits than its factorization.

815547481342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37070340074.

The product of its digits is 4300800, while the sum is 52.

The spelling of 815547481342 in words is "eight hundred fifteen billion, five hundred forty-seven million, four hundred eighty-one thousand, three hundred forty-two".