213461790613 has 2 divisors, whose sum is σ = 213461790614. Its totient is φ = 213461790612.

The previous prime is 213461790557. The next prime is 213461790671. The reversal of 213461790613 is 316097164312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160991932644 + 52469857969 = 401238^2 + 229063^2 .

It is a cyclic number.

It is not a de Polignac number, because 213461790613 - 2¹³ = 213461782421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213461790613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213461790673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106730895306 + 106730895307.

It is an arithmetic number, because the mean of its divisors is an integer number (106730895307).

Almost surely, 2^213461790613 is an apocalyptic number.

It is an amenable number.

213461790613 is a deficient number, since it is larger than the sum of its proper divisors (1).

213461790613 is an equidigital number, since it uses as much as digits as its factorization.

213461790613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 43.

The spelling of 213461790613 in words is "two hundred thirteen billion, four hundred sixty-one million, seven hundred ninety thousand, six hundred thirteen".