1420204424777 has 2 divisors, whose sum is σ = 1420204424778. Its totient is φ = 1420204424776.

The previous prime is 1420204424707. The next prime is 1420204424857. The reversal of 1420204424777 is 7774244020241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1365214643776 + 54989781001 = 1168424^2 + 234499^2 .

It is a cyclic number.

It is not a de Polignac number, because 1420204424777 - 2¹² = 1420204420681 is a prime.

It is not a weakly prime, because it can be changed into another prime (1420204424707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710102212388 + 710102212389.

It is an arithmetic number, because the mean of its divisors is an integer number (710102212389).

Almost surely, 2^{1420204424777} is an apocalyptic number.

It is an amenable number.

1420204424777 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420204424777 is an equidigital number, since it uses as much as digits as its factorization.

1420204424777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 702464, while the sum is 44.

The spelling of 1420204424777 in words is "one trillion, four hundred twenty billion, two hundred four million, four hundred twenty-four thousand, seven hundred seventy-seven".