7342851281 has 2 divisors, whose sum is σ = 7342851282. Its totient is φ = 7342851280.

The previous prime is 7342851277. The next prime is 7342851319. The reversal of 7342851281 is 1821582437.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4860320656 + 2482530625 = 69716^2 + 49825^2 .

It is an emirp because it is prime and its reverse (1821582437) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7342851281 - 2² = 7342851277 is a prime.

It is a super-2 number, since 2×7342851281² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7342851251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3671425640 + 3671425641.

It is an arithmetic number, because the mean of its divisors is an integer number (3671425641).

Almost surely, 2^7342851281 is an apocalyptic number.

It is an amenable number.

7342851281 is a deficient number, since it is larger than the sum of its proper divisors (1).

7342851281 is an equidigital number, since it uses as much as digits as its factorization.

7342851281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 107520, while the sum is 41.

The square root of 7342851281 is about 85690.4386790032. The cubic root of 7342851281 is about 1943.6657300673.

The spelling of 7342851281 in words is "seven billion, three hundred forty-two million, eight hundred fifty-one thousand, two hundred eighty-one".