30697644613 has 2 divisors, whose sum is σ = 30697644614. Its totient is φ = 30697644612.

The previous prime is 30697644587. The next prime is 30697644619. The reversal of 30697644613 is 31644679603.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21124587649 + 9573056964 = 145343^2 + 97842^2 .

It is an emirp because it is prime and its reverse (31644679603) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30697644613 - 2²¹ = 30695547461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30697644619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15348822306 + 15348822307.

It is an arithmetic number, because the mean of its divisors is an integer number (15348822307).

Almost surely, 2^30697644613 is an apocalyptic number.

It is an amenable number.

30697644613 is a deficient number, since it is larger than the sum of its proper divisors (1).

30697644613 is an equidigital number, since it uses as much as digits as its factorization.

30697644613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1959552, while the sum is 49.

The spelling of 30697644613 in words is "thirty billion, six hundred ninety-seven million, six hundred forty-four thousand, six hundred thirteen".