30380876809 has 4 divisors (see below), whose sum is σ = 30398781204. Its totient is φ = 30362972416.

The previous prime is 30380876797. The next prime is 30380876833. The reversal of 30380876809 is 90867808303.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90867808303 = 223 ⋅407478961.

It can be written as a sum of positive squares in 2 ways, for example, as 22362211600 + 8018665209 = 149540^2 + 89547^2 .

It is a cyclic number.

It is not a de Polignac number, because 30380876809 - 2²¹ = 30378779657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30380876839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8949652 + ... + 8953045.

It is an arithmetic number, because the mean of its divisors is an integer number (7599695301).

Almost surely, 2^30380876809 is an apocalyptic number.

It is an amenable number.

30380876809 is a deficient number, since it is larger than the sum of its proper divisors (17904395).

30380876809 is a wasteful number, since it uses less digits than its factorization.

30380876809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17904394.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 30380876809 in words is "thirty billion, three hundred eighty million, eight hundred seventy-six thousand, eight hundred nine".