30545187703873 has 2 divisors, whose sum is σ = 30545187703874. Its totient is φ = 30545187703872.

The previous prime is 30545187703871. The next prime is 30545187703909. The reversal of 30545187703873 is 37830778154503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26158437579024 + 4386750124849 = 5114532^2 + 2094457^2 .

It is a cyclic number.

It is not a de Polignac number, because 30545187703873 - 2¹ = 30545187703871 is a prime.

Together with 30545187703871, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (30545187703871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15272593851936 + 15272593851937.

It is an arithmetic number, because the mean of its divisors is an integer number (15272593851937).

Almost surely, 2^{30545187703873} is an apocalyptic number.

It is an amenable number.

30545187703873 is a deficient number, since it is larger than the sum of its proper divisors (1).

30545187703873 is an equidigital number, since it uses as much as digits as its factorization.

30545187703873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 59270400, while the sum is 61.

The spelling of 30545187703873 in words is "thirty trillion, five hundred forty-five billion, one hundred eighty-seven million, seven hundred three thousand, eight hundred seventy-three".