30185673913 has 2 divisors, whose sum is σ = 30185673914. Its totient is φ = 30185673912.

The previous prime is 30185673911. The next prime is 30185673929. The reversal of 30185673913 is 31937658103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22201894009 + 7983779904 = 149003^2 + 89352^2 .

It is a cyclic number.

It is not a de Polignac number, because 30185673913 - 2¹ = 30185673911 is a prime.

It is a super-2 number, since 2×30185673913² (a number of 22 digits) contains 22 as substring.

Together with 30185673911, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (30185673911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15092836956 + 15092836957.

It is an arithmetic number, because the mean of its divisors is an integer number (15092836957).

Almost surely, 2^30185673913 is an apocalyptic number.

It is an amenable number.

30185673913 is a deficient number, since it is larger than the sum of its proper divisors (1).

30185673913 is an equidigital number, since it uses as much as digits as its factorization.

30185673913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 46.

It can be divided in two parts, 301856 and 73913, that added together give a square (375769 = 613²).

The spelling of 30185673913 in words is "thirty billion, one hundred eighty-five million, six hundred seventy-three thousand, nine hundred thirteen".