4282720931549 has 2 divisors, whose sum is σ = 4282720931550. Its totient is φ = 4282720931548.

The previous prime is 4282720931537. The next prime is 4282720931633. The reversal of 4282720931549 is 9451390272824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4185223991524 + 97496940025 = 2045782^2 + 312245^2 .

It is a cyclic number.

It is not a de Polignac number, because 4282720931549 - 2¹⁶ = 4282720866013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4282720931494 and 4282720931503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4282720931249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2141360465774 + 2141360465775.

It is an arithmetic number, because the mean of its divisors is an integer number (2141360465775).

Almost surely, 2^{4282720931549} is an apocalyptic number.

It is an amenable number.

4282720931549 is a deficient number, since it is larger than the sum of its proper divisors (1).

4282720931549 is an equidigital number, since it uses as much as digits as its factorization.

4282720931549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8709120, while the sum is 56.

The spelling of 4282720931549 in words is "four trillion, two hundred eighty-two billion, seven hundred twenty million, nine hundred thirty-one thousand, five hundred forty-nine".