17950078009 has 4 divisors (see below), whose sum is σ = 17950377600. Its totient is φ = 17949778420.

The previous prime is 17950077989. The next prime is 17950078051. The reversal of 17950078009 is 90087005971.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 17950078009 - 2³³ = 9360143417 is a prime.

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 17950078009.

It is not an unprimeable number, because it can be changed into a prime (17950070009) 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 3 ways as a sum of consecutive naturals, for example, 25597 + ... + 191194.

It is an arithmetic number, because the mean of its divisors is an integer number (4487594400).

Almost surely, 2^17950078009 is an apocalyptic number.

It is an amenable number.

17950078009 is a deficient number, since it is larger than the sum of its proper divisors (299591).

17950078009 is an equidigital number, since it uses as much as digits as its factorization.

17950078009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299590.

The product of its (nonzero) digits is 158760, while the sum is 46.

The spelling of 17950078009 in words is "seventeen billion, nine hundred fifty million, seventy-eight thousand, nine".