30851254843 has 2 divisors, whose sum is σ = 30851254844. Its totient is φ = 30851254842.

The previous prime is 30851254831. The next prime is 30851254853. The reversal of 30851254843 is 34845215803.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30851254843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30851254843.

It is not a weakly prime, because it can be changed into another prime (30851254813) 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, 15425627421 + 15425627422.

It is an arithmetic number, because the mean of its divisors is an integer number (15425627422).

Almost surely, 2^30851254843 is an apocalyptic number.

30851254843 is a deficient number, since it is larger than the sum of its proper divisors (1).

30851254843 is an equidigital number, since it uses as much as digits as its factorization.

30851254843 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 460800, while the sum is 43.

The spelling of 30851254843 in words is "thirty billion, eight hundred fifty-one million, two hundred fifty-four thousand, eight hundred forty-three".