421500044450347 has 2 divisors, whose sum is σ = 421500044450348. Its totient is φ = 421500044450346.

The previous prime is 421500044450291. The next prime is 421500044450351. The reversal of 421500044450347 is 743054440005124.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 421500044450347 - 2²³ = 421500036061739 is a prime.

It is not a weakly prime, because it can be changed into another prime (421500044450047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210750022225173 + 210750022225174.

It is an arithmetic number, because the mean of its divisors is an integer number (210750022225174).

Almost surely, 2^{421500044450347} is an apocalyptic number.

421500044450347 is a deficient number, since it is larger than the sum of its proper divisors (1).

421500044450347 is an equidigital number, since it uses as much as digits as its factorization.

421500044450347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1075200, while the sum is 43.

The spelling of 421500044450347 in words is "four hundred twenty-one trillion, five hundred billion, forty-four million, four hundred fifty thousand, three hundred forty-seven".