420545496247 has 2 divisors, whose sum is σ = 420545496248. Its totient is φ = 420545496246.

The previous prime is 420545496229. The next prime is 420545496251. The reversal of 420545496247 is 742694545024.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420545496247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420545496194 and 420545496203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420545496947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210272748123 + 210272748124.

It is an arithmetic number, because the mean of its divisors is an integer number (210272748124).

Almost surely, 2^420545496247 is an apocalyptic number.

420545496247 is a deficient number, since it is larger than the sum of its proper divisors (1).

420545496247 is an equidigital number, since it uses as much as digits as its factorization.

420545496247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9676800, while the sum is 52.

The spelling of 420545496247 in words is "four hundred twenty billion, five hundred forty-five million, four hundred ninety-six thousand, two hundred forty-seven".