1618039799 has 8 divisors (see below), whose sum is σ = 1628998080. Its totient is φ = 1607116896.

The previous prime is 1618039793. The next prime is 1618039849. The reversal of 1618039799 is 9979308161.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1618039799 is a prime.

It is a super-2 number, since 2×1618039799² = 5236105582295920802, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1618039799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1618039793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86357 + ... + 103409.

It is an arithmetic number, because the mean of its divisors is an integer number (203624760).

Almost surely, 2^1618039799 is an apocalyptic number.

1618039799 is a deficient number, since it is larger than the sum of its proper divisors (10958281).

1618039799 is a wasteful number, since it uses less digits than its factorization.

1618039799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17689.

The product of its (nonzero) digits is 734832, while the sum is 53.

The square root of 1618039799 is about 40224.8654317202. The cubic root of 1618039799 is about 1173.9864019371.

The spelling of 1618039799 in words is "one billion, six hundred eighteen million, thirty-nine thousand, seven hundred ninety-nine".