4012728372539 has 2 divisors, whose sum is σ = 4012728372540. Its totient is φ = 4012728372538.

The previous prime is 4012728372473. The next prime is 4012728372559. The reversal of 4012728372539 is 9352738272104.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4012728372539 is a prime.

It is a super-2 number, since 2×4012728372539² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4012728372559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2006364186269 + 2006364186270.

It is an arithmetic number, because the mean of its divisors is an integer number (2006364186270).

Almost surely, 2^{4012728372539} is an apocalyptic number.

4012728372539 is a deficient number, since it is larger than the sum of its proper divisors (1).

4012728372539 is an equidigital number, since it uses as much as digits as its factorization.

4012728372539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 4012728372539 in words is "four trillion, twelve billion, seven hundred twenty-eight million, three hundred seventy-two thousand, five hundred thirty-nine".