421434244432349 has 2 divisors, whose sum is σ = 421434244432350. Its totient is φ = 421434244432348.

The previous prime is 421434244432307. The next prime is 421434244432433. The reversal of 421434244432349 is 943234442434124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 288812418448324 + 132621825984025 = 16994482^2 + 11516155^2 .

It is a cyclic number.

It is not a de Polignac number, because 421434244432349 - 2⁸ = 421434244432093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 421434244432349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421434244432049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210717122216174 + 210717122216175.

It is an arithmetic number, because the mean of its divisors is an integer number (210717122216175).

Almost surely, 2^{421434244432349} is an apocalyptic number.

It is an amenable number.

421434244432349 is a deficient number, since it is larger than the sum of its proper divisors (1).

421434244432349 is an equidigital number, since it uses as much as digits as its factorization.

421434244432349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31850496, while the sum is 53.

The spelling of 421434244432349 in words is "four hundred twenty-one trillion, four hundred thirty-four billion, two hundred forty-four million, four hundred thirty-two thousand, three hundred forty-nine".