7124882381 has 2 divisors, whose sum is σ = 7124882382. Its totient is φ = 7124882380.

The previous prime is 7124882363. The next prime is 7124882407. The reversal of 7124882381 is 1832884217.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5030355625 + 2094526756 = 70925^2 + 45766^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7124882381 is a prime.

It is a super-2 number, since 2×7124882381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7124882311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3562441190 + 3562441191.

It is an arithmetic number, because the mean of its divisors is an integer number (3562441191).

Almost surely, 2^7124882381 is an apocalyptic number.

It is an amenable number.

7124882381 is a deficient number, since it is larger than the sum of its proper divisors (1).

7124882381 is an equidigital number, since it uses as much as digits as its factorization.

7124882381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172032, while the sum is 44.

The square root of 7124882381 is about 84409.0183629688. The cubic root of 7124882381 is about 1924.2399771157.

The spelling of 7124882381 in words is "seven billion, one hundred twenty-four million, eight hundred eighty-two thousand, three hundred eighty-one".