420269551441 has 2 divisors, whose sum is σ = 420269551442. Its totient is φ = 420269551440.

The previous prime is 420269551391. The next prime is 420269551549. The reversal of 420269551441 is 144155962024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 419779593216 + 489958225 = 647904^2 + 22135^2 .

It is a cyclic number.

It is not a de Polignac number, because 420269551441 - 2⁹ = 420269550929 is a prime.

It is a super-5 number, since 5×420269551441⁵ (a number of 59 digits) contains 55555 as substring.

It is not a weakly prime, because it can be changed into another prime (420269551841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210134775720 + 210134775721.

It is an arithmetic number, because the mean of its divisors is an integer number (210134775721).

Almost surely, 2^420269551441 is an apocalyptic number.

It is an amenable number.

420269551441 is a deficient number, since it is larger than the sum of its proper divisors (1).

420269551441 is an equidigital number, since it uses as much as digits as its factorization.

420269551441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 420269551441 in words is "four hundred twenty billion, two hundred sixty-nine million, five hundred fifty-one thousand, four hundred forty-one".