30851900593 has 2 divisors, whose sum is σ = 30851900594. Its totient is φ = 30851900592.

The previous prime is 30851900591. The next prime is 30851900603. The reversal of 30851900593 is 39500915803.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18088098064 + 12763802529 = 134492^2 + 112977^2 .

It is a cyclic number.

It is not a de Polignac number, because 30851900593 - 2¹ = 30851900591 is a prime.

Together with 30851900591, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (30851900591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15425950296 + 15425950297.

It is an arithmetic number, because the mean of its divisors is an integer number (15425950297).

Almost surely, 2^30851900593 is an apocalyptic number.

It is an amenable number.

30851900593 is a deficient number, since it is larger than the sum of its proper divisors (1).

30851900593 is an equidigital number, since it uses as much as digits as its factorization.

30851900593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145800, while the sum is 43.

The spelling of 30851900593 in words is "thirty billion, eight hundred fifty-one million, nine hundred thousand, five hundred ninety-three".