4354721281 has 2 divisors, whose sum is σ = 4354721282. Its totient is φ = 4354721280.

The previous prime is 4354721251. The next prime is 4354721297. The reversal of 4354721281 is 1821274534.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2865996225 + 1488725056 = 53535^2 + 38584^2 .

It is a cyclic number.

It is not a de Polignac number, because 4354721281 - 2¹³ = 4354713089 is a prime.

It is a super-2 number, since 2×4354721281² = 37927194870388561922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4354721281.

It is not a weakly prime, because it can be changed into another prime (4354721251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2177360640 + 2177360641.

It is an arithmetic number, because the mean of its divisors is an integer number (2177360641).

Almost surely, 2^4354721281 is an apocalyptic number.

It is an amenable number.

4354721281 is a deficient number, since it is larger than the sum of its proper divisors (1).

4354721281 is an equidigital number, since it uses as much as digits as its factorization.

4354721281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53760, while the sum is 37.

The square root of 4354721281 is about 65990.3120238115. The cubic root of 4354721281 is about 1633.0022679779.

The spelling of 4354721281 in words is "four billion, three hundred fifty-four million, seven hundred twenty-one thousand, two hundred eighty-one".