1980413839 has 2 divisors, whose sum is σ = 1980413840. Its totient is φ = 1980413838.

The previous prime is 1980413821. The next prime is 1980413893. The reversal of 1980413839 is 9383140891.

It is a happy number.

Together with next prime (1980413893) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (9383140891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1980413839 - 2⁹ = 1980413327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1980473839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 990206919 + 990206920.

It is an arithmetic number, because the mean of its divisors is an integer number (990206920).

Almost surely, 2^1980413839 is an apocalyptic number.

1980413839 is a deficient number, since it is larger than the sum of its proper divisors (1).

1980413839 is an equidigital number, since it uses as much as digits as its factorization.

1980413839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 1980413839 is about 44501.8408495649. The cubic root of 1980413839 is about 1255.7947145035.

The spelling of 1980413839 in words is "one billion, nine hundred eighty million, four hundred thirteen thousand, eight hundred thirty-nine".