1812319473742 has 8 divisors (see below), whose sum is σ = 2719640464632. Its totient is φ = 905772652200.

The previous prime is 1812319473697. The next prime is 1812319473793. The reversal of 1812319473742 is 2473749132181.

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 1812319473742.

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, 193536484 + ... + 193545847.

It is an arithmetic number, because the mean of its divisors is an integer number (339955058079).

Almost surely, 2^{1812319473742} is an apocalyptic number.

1812319473742 is a deficient number, since it is larger than the sum of its proper divisors (907320990890).

1812319473742 is a wasteful number, since it uses less digits than its factorization.

1812319473742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387084674.

The product of its digits is 2032128, while the sum is 52.

The spelling of 1812319473742 in words is "one trillion, eight hundred twelve billion, three hundred nineteen million, four hundred seventy-three thousand, seven hundred forty-two".