1434772772821 has 2 divisors, whose sum is σ = 1434772772822. Its totient is φ = 1434772772820.

The previous prime is 1434772772813. The next prime is 1434772772899. The reversal of 1434772772821 is 1282772774341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 898305884100 + 536466888721 = 947790^2 + 732439^2 .

It is a cyclic number.

It is not a de Polignac number, because 1434772772821 - 2³ = 1434772772813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1434772778821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 717386386410 + 717386386411.

It is an arithmetic number, because the mean of its divisors is an integer number (717386386411).

Almost surely, 2^{1434772772821} is an apocalyptic number.

It is an amenable number.

1434772772821 is a deficient number, since it is larger than the sum of its proper divisors (1).

1434772772821 is an equidigital number, since it uses as much as digits as its factorization.

1434772772821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7375872, while the sum is 55.

The spelling of 1434772772821 in words is "one trillion, four hundred thirty-four billion, seven hundred seventy-two million, seven hundred seventy-two thousand, eight hundred twenty-one".