2152806463439 has 2 divisors, whose sum is σ = 2152806463440. Its totient is φ = 2152806463438.

The previous prime is 2152806463421. The next prime is 2152806463463. The reversal of 2152806463439 is 9343646082512.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2152806463439 is a prime.

It is a super-3 number, since 3×2152806463439³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2152806463139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1076403231719 + 1076403231720.

It is an arithmetic number, because the mean of its divisors is an integer number (1076403231720).

Almost surely, 2^{2152806463439} is an apocalyptic number.

2152806463439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2152806463439 is an equidigital number, since it uses as much as digits as its factorization.

2152806463439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7464960, while the sum is 53.

The spelling of 2152806463439 in words is "two trillion, one hundred fifty-two billion, eight hundred six million, four hundred sixty-three thousand, four hundred thirty-nine".