420454657307 has 2 divisors, whose sum is σ = 420454657308. Its totient is φ = 420454657306.

The previous prime is 420454657223. The next prime is 420454657309. The reversal of 420454657307 is 703756454024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420454657307 - 2¹² = 420454653211 is a prime.

It is a super-2 number, since 2×420454657307² (a number of 24 digits) contains 22 as substring.

Together with 420454657309, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (420454657309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210227328653 + 210227328654.

It is an arithmetic number, because the mean of its divisors is an integer number (210227328654).

Almost surely, 2^420454657307 is an apocalyptic number.

420454657307 is a deficient number, since it is larger than the sum of its proper divisors (1).

420454657307 is an equidigital number, since it uses as much as digits as its factorization.

420454657307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2822400, while the sum is 47.

The spelling of 420454657307 in words is "four hundred twenty billion, four hundred fifty-four million, six hundred fifty-seven thousand, three hundred seven".