8140574279 has 2 divisors, whose sum is σ = 8140574280. Its totient is φ = 8140574278.

The previous prime is 8140574261. The next prime is 8140574293. The reversal of 8140574279 is 9724750418.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8140574279 - 2²⁰ = 8139525703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8140574249) 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, 4070287139 + 4070287140.

It is an arithmetic number, because the mean of its divisors is an integer number (4070287140).

Almost surely, 2^8140574279 is an apocalyptic number.

8140574279 is a deficient number, since it is larger than the sum of its proper divisors (1).

8140574279 is an equidigital number, since it uses as much as digits as its factorization.

8140574279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 564480, while the sum is 47.

The square root of 8140574279 is about 90225.1310833074. The cubic root of 8140574279 is about 2011.6465703025.

The spelling of 8140574279 in words is "eight billion, one hundred forty million, five hundred seventy-four thousand, two hundred seventy-nine".