420454030051009 has 2 divisors, whose sum is σ = 420454030051010. Its totient is φ = 420454030051008.

The previous prime is 420454030050979. The next prime is 420454030051031. The reversal of 420454030051009 is 900150030454024.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 399690259985025 + 20763770065984 = 19992255^2 + 4556728^2 .

It is a cyclic number.

It is not a de Polignac number, because 420454030051009 - 2⁹ = 420454030050497 is a prime.

It is a super-2 number, since 2×420454030051009² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (420454030051409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210227015025504 + 210227015025505.

It is an arithmetic number, because the mean of its divisors is an integer number (210227015025505).

Almost surely, 2^{420454030051009} is an apocalyptic number.

It is an amenable number.

420454030051009 is a deficient number, since it is larger than the sum of its proper divisors (1).

420454030051009 is an equidigital number, since it uses as much as digits as its factorization.

420454030051009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 420454030051009 in words is "four hundred twenty trillion, four hundred fifty-four billion, thirty million, fifty-one thousand, nine".