30355551841 has 4 divisors (see below), whose sum is σ = 30384490500. Its totient is φ = 30326613184.

The previous prime is 30355551769. The next prime is 30355551847. The reversal of 30355551841 is 14815555303.

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 27640725025 + 2714826816 = 166255^2 + 52104^2 .

It is a cyclic number.

It is not a de Polignac number, because 30355551841 - 2¹³ = 30355543649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30355551794 and 30355551803.

It is not an unprimeable number, because it can be changed into a prime (30355551847) 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, 14467756 + ... + 14469853.

It is an arithmetic number, because the mean of its divisors is an integer number (7596122625).

Almost surely, 2^30355551841 is an apocalyptic number.

It is an amenable number.

30355551841 is a deficient number, since it is larger than the sum of its proper divisors (28938659).

30355551841 is a wasteful number, since it uses less digits than its factorization.

30355551841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28938658.

The product of its (nonzero) digits is 180000, while the sum is 40.

The spelling of 30355551841 in words is "thirty billion, three hundred fifty-five million, five hundred fifty-one thousand, eight hundred forty-one".