30851173124447 has 24 divisors (see below), whose sum is σ = 34199373068784. Its totient is φ = 27815712357888.

The previous prime is 30851173124437. The next prime is 30851173124459. The reversal of 30851173124447 is 74442137115803.

It is not a de Polignac number, because 30851173124447 - 2¹⁸ = 30851172862303 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30851173124395 and 30851173124404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30851173124437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14999423 + ... + 16931775.

It is an arithmetic number, because the mean of its divisors is an integer number (1424973877866).

Almost surely, 2^{30851173124447} is an apocalyptic number.

30851173124447 is a deficient number, since it is larger than the sum of its proper divisors (3348199944337).

30851173124447 is an frugal number, since it uses more digits than its factorization.

30851173124447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932461 (or 1932409 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 50.

The spelling of 30851173124447 in words is "thirty trillion, eight hundred fifty-one billion, one hundred seventy-three million, one hundred twenty-four thousand, four hundred forty-seven".