4202325781 has 2 divisors, whose sum is σ = 4202325782. Its totient is φ = 4202325780.

The previous prime is 4202325749. The next prime is 4202325877. The reversal of 4202325781 is 1875232024.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4197873681 + 4452100 = 64791^2 + 2110^2 .

It is a cyclic number.

It is not a de Polignac number, because 4202325781 - 2⁵ = 4202325749 is a prime.

It is a super-2 number, since 2×4202325781² = 35319083939314519922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4202325731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2101162890 + 2101162891.

It is an arithmetic number, because the mean of its divisors is an integer number (2101162891).

Almost surely, 2^4202325781 is an apocalyptic number.

It is an amenable number.

4202325781 is a deficient number, since it is larger than the sum of its proper divisors (1).

4202325781 is an equidigital number, since it uses as much as digits as its factorization.

4202325781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 4202325781 is about 64825.3482906185. The cubic root of 4202325781 is about 1613.7264070760.

The spelling of 4202325781 in words is "four billion, two hundred two million, three hundred twenty-five thousand, seven hundred eighty-one".