1618687041 has 8 divisors (see below), whose sum is σ = 2227870464. Its totient is φ = 1044314160.

The previous prime is 1618687019. The next prime is 1618687051. The reversal of 1618687041 is 1407868161.

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

It is not a de Polignac number, because 1618687041 - 2¹⁷ = 1618555969 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1618686984 and 1618687002.

It is not an unprimeable number, because it can be changed into a prime (1618687051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8702526 + ... + 8702711.

It is an arithmetic number, because the mean of its divisors is an integer number (278483808).

Almost surely, 2^1618687041 is an apocalyptic number.

It is an amenable number.

1618687041 is a deficient number, since it is larger than the sum of its proper divisors (609183423).

1618687041 is a wasteful number, since it uses less digits than its factorization.

1618687041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17405271.

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 1618687041 is about 40232.9099245879. The cubic root of 1618687041 is about 1174.1429188971.

The spelling of 1618687041 in words is "one billion, six hundred eighteen million, six hundred eighty-seven thousand, forty-one".