1618694982 has 16 divisors (see below), whose sum is σ = 3597100080. Its totient is φ = 539564976.

The previous prime is 1618694947. The next prime is 1618694999. The reversal of 1618694982 is 2894968161.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 29975833 = 1618694982 / (1 + 6 + 1 + 8 + 6 + 9 + 4 + 9 + 8 + 2).

It is a congruent number.

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, 14987863 + ... + 14987970.

It is an arithmetic number, because the mean of its divisors is an integer number (224818755).

Almost surely, 2^1618694982 is an apocalyptic number.

1618694982 is an abundant number, since it is smaller than the sum of its proper divisors (1978405098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1618694982 is a wasteful number, since it uses less digits than its factorization.

1618694982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29975844 (or 29975838 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 54.

The square root of 1618694982 is about 40233.0086123322. The cubic root of 1618694982 is about 1174.1448389416.

The spelling of 1618694982 in words is "one billion, six hundred eighteen million, six hundred ninety-four thousand, nine hundred eighty-two".