420344313051547 has 2 divisors, whose sum is σ = 420344313051548. Its totient is φ = 420344313051546.

The previous prime is 420344313051451. The next prime is 420344313051623. The reversal of 420344313051547 is 745150313443024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420344313051547 - 2¹⁵ = 420344313018779 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420344313051497 and 420344313051506.

It is not a weakly prime, because it can be changed into another prime (420344313058547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210172156525773 + 210172156525774.

It is an arithmetic number, because the mean of its divisors is an integer number (210172156525774).

Almost surely, 2^{420344313051547} is an apocalyptic number.

420344313051547 is a deficient number, since it is larger than the sum of its proper divisors (1).

420344313051547 is an equidigital number, since it uses as much as digits as its factorization.

420344313051547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2419200, while the sum is 46.

The spelling of 420344313051547 in words is "four hundred twenty trillion, three hundred forty-four billion, three hundred thirteen million, fifty-one thousand, five hundred forty-seven".