30855105409 has 4 divisors (see below), whose sum is σ = 30856845060. Its totient is φ = 30853365760.

The previous prime is 30855105401. The next prime is 30855105467. The reversal of 30855105409 is 90450155803.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4366566400 + 26488539009 = 66080^2 + 162753^2 .

It is a cyclic number.

It is not a de Polignac number, because 30855105409 - 2³ = 30855105401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30855105401) 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, 842944 + ... + 878785.

It is an arithmetic number, because the mean of its divisors is an integer number (7714211265).

Almost surely, 2^30855105409 is an apocalyptic number.

It is an amenable number.

30855105409 is a deficient number, since it is larger than the sum of its proper divisors (1739651).

30855105409 is a wasteful number, since it uses less digits than its factorization.

30855105409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739650.

The product of its (nonzero) digits is 108000, while the sum is 40.

The spelling of 30855105409 in words is "thirty billion, eight hundred fifty-five million, one hundred five thousand, four hundred nine".