16903390009 has 4 divisors (see below), whose sum is σ = 18440061840. Its totient is φ = 15366718180.

The previous prime is 16903389967. The next prime is 16903390019. The reversal of 16903390009 is 90009330961.

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 not a de Polignac number, because 16903390009 - 2²¹ = 16901292857 is a prime.

It is a super-2 number, since 2×16903390009² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16903390019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 768335899 + ... + 768335920.

It is an arithmetic number, because the mean of its divisors is an integer number (4610015460).

Almost surely, 2^16903390009 is an apocalyptic number.

It is an amenable number.

16903390009 is a deficient number, since it is larger than the sum of its proper divisors (1536671831).

16903390009 is a wasteful number, since it uses less digits than its factorization.

16903390009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536671830.

The product of its (nonzero) digits is 39366, while the sum is 40.

The spelling of 16903390009 in words is "sixteen billion, nine hundred three million, three hundred ninety thousand, nine".