214437343693 has 2 divisors, whose sum is σ = 214437343694. Its totient is φ = 214437343692.

The previous prime is 214437343663. The next prime is 214437343697. The reversal of 214437343693 is 396343734412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149666075689 + 64771268004 = 386867^2 + 254502^2 .

It is a cyclic number.

It is not a de Polignac number, because 214437343693 - 2⁵ = 214437343661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214437343697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107218671846 + 107218671847.

It is an arithmetic number, because the mean of its divisors is an integer number (107218671847).

Almost surely, 2^214437343693 is an apocalyptic number.

It is an amenable number.

214437343693 is a deficient number, since it is larger than the sum of its proper divisors (1).

214437343693 is an equidigital number, since it uses as much as digits as its factorization.

214437343693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3919104, while the sum is 49.

The spelling of 214437343693 in words is "two hundred fourteen billion, four hundred thirty-seven million, three hundred forty-three thousand, six hundred ninety-three".