1982705507 has 2 divisors, whose sum is σ = 1982705508. Its totient is φ = 1982705506.

The previous prime is 1982705497. The next prime is 1982705519. The reversal of 1982705507 is 7055072891.

It is a weak prime.

It is an emirp because it is prime and its reverse (7055072891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1982705507 - 2⁸ = 1982705251 is a prime.

It is a super-2 number, since 2×1982705507² = 7862242254976254098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1982705807) 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, 991352753 + 991352754.

It is an arithmetic number, because the mean of its divisors is an integer number (991352754).

Almost surely, 2^1982705507 is an apocalyptic number.

1982705507 is a deficient number, since it is larger than the sum of its proper divisors (1).

1982705507 is an equidigital number, since it uses as much as digits as its factorization.

1982705507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 176400, while the sum is 44.

The square root of 1982705507 is about 44527.5814187117. The cubic root of 1982705507 is about 1256.2789155263.

The spelling of 1982705507 in words is "one billion, nine hundred eighty-two million, seven hundred five thousand, five hundred seven".