213380677997 has 2 divisors, whose sum is σ = 213380677998. Its totient is φ = 213380677996.

The previous prime is 213380677967. The next prime is 213380678029. The reversal of 213380677997 is 799776083312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122233445161 + 91147232836 = 349619^2 + 301906^2 .

It is a cyclic number.

It is not a de Polignac number, because 213380677997 - 2¹² = 213380673901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213380677927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106690338998 + 106690338999.

It is an arithmetic number, because the mean of its divisors is an integer number (106690338999).

Almost surely, 2^213380677997 is an apocalyptic number.

It is an amenable number.

213380677997 is a deficient number, since it is larger than the sum of its proper divisors (1).

213380677997 is an equidigital number, since it uses as much as digits as its factorization.

213380677997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24004512, while the sum is 62.

The spelling of 213380677997 in words is "two hundred thirteen billion, three hundred eighty million, six hundred seventy-seven thousand, nine hundred ninety-seven".