30949254027821 has 2 divisors, whose sum is σ = 30949254027822. Its totient is φ = 30949254027820.

The previous prime is 30949254027763. The next prime is 30949254027829. The reversal of 30949254027821 is 12872045294903.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19409848846921 + 11539405180900 = 4405661^2 + 3396970^2 .

It is a cyclic number.

It is not a de Polignac number, because 30949254027821 - 2³⁸ = 30674376120877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30949254027829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15474627013910 + 15474627013911.

It is an arithmetic number, because the mean of its divisors is an integer number (15474627013911).

Almost surely, 2^{30949254027821} is an apocalyptic number.

It is an amenable number.

30949254027821 is a deficient number, since it is larger than the sum of its proper divisors (1).

30949254027821 is an equidigital number, since it uses as much as digits as its factorization.

30949254027821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8709120, while the sum is 56.

The spelling of 30949254027821 in words is "thirty trillion, nine hundred forty-nine billion, two hundred fifty-four million, twenty-seven thousand, eight hundred twenty-one".