1618481842 has 16 divisors (see below), whose sum is σ = 2451889440. Its totient is φ = 801224992.

The previous prime is 1618481791. The next prime is 1618481869. The reversal of 1618481842 is 2481848161.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73713 + ... + 93115.

It is an arithmetic number, because the mean of its divisors is an integer number (153243090).

Almost surely, 2^1618481842 is an apocalyptic number.

1618481842 is a deficient number, since it is larger than the sum of its proper divisors (833407598).

1618481842 is a wasteful number, since it uses less digits than its factorization.

1618481842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19817.

The product of its digits is 98304, while the sum is 43.

The square root of 1618481842 is about 40230.3597050785. The cubic root of 1618481842 is about 1174.0933019074.

The spelling of 1618481842 in words is "one billion, six hundred eighteen million, four hundred eighty-one thousand, eight hundred forty-two".