30381802909 has 8 divisors (see below), whose sum is σ = 32234493888. Its totient is φ = 28536392640.

The previous prime is 30381802897. The next prime is 30381802981. The reversal of 30381802909 is 90920818303.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 30381802909 - 2¹³ = 30381794717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30381802999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1811577 + ... + 1828270.

It is an arithmetic number, because the mean of its divisors is an integer number (4029311736).

Almost surely, 2^30381802909 is an apocalyptic number.

It is an amenable number.

30381802909 is a deficient number, since it is larger than the sum of its proper divisors (1852690979).

30381802909 is a wasteful number, since it uses less digits than its factorization.

30381802909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3640355.

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 30381802909 in words is "thirty billion, three hundred eighty-one million, eight hundred two thousand, nine hundred nine".