4542039391 has 2 divisors, whose sum is σ = 4542039392. Its totient is φ = 4542039390.

The previous prime is 4542039373. The next prime is 4542039427. The reversal of 4542039391 is 1939302454.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4542039391 - 2²³ = 4533650783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4542039331) 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, 2271019695 + 2271019696.

It is an arithmetic number, because the mean of its divisors is an integer number (2271019696).

Almost surely, 2^4542039391 is an apocalyptic number.

4542039391 is a deficient number, since it is larger than the sum of its proper divisors (1).

4542039391 is an equidigital number, since it uses as much as digits as its factorization.

4542039391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 4542039391 is about 67394.6540238912. The cubic root of 4542039391 is about 1656.0888458822.

The spelling of 4542039391 in words is "four billion, five hundred forty-two million, thirty-nine thousand, three hundred ninety-one".