1816474485 has 64 divisors (see below), whose sum is σ = 3424684032. Its totient is φ = 804784896.

The previous prime is 1816474469. The next prime is 1816474493. The reversal of 1816474485 is 5844746181.

It is not a de Polignac number, because 1816474485 - 2⁴ = 1816474469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1191934 + ... + 1193456.

It is an arithmetic number, because the mean of its divisors is an integer number (53510688).

Almost surely, 2^1816474485 is an apocalyptic number.

1816474485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1816474485 is a deficient number, since it is larger than the sum of its proper divisors (1608209547).

1816474485 is a wasteful number, since it uses less digits than its factorization.

1816474485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1882.

The product of its digits is 860160, while the sum is 48.

The square root of 1816474485 is about 42620.1183128344. The cubic root of 1816474485 is about 1220.1402877735.

It can be divided in two parts, 181647 and 4485, that multiplied together give a triangular number (814686795 = T₄₀₃₆₅).

The spelling of 1816474485 in words is "one billion, eight hundred sixteen million, four hundred seventy-four thousand, four hundred eighty-five".