30782263442 has 54 divisors (see below), whose sum is σ = 55318302837. Its totient is φ = 12809050128.

The previous prime is 30782263441. The next prime is 30782263537. The reversal of 30782263442 is 24436228703.

It can be written as a sum of positive squares in 2 ways, for example, as 24834923281 + 5947340161 = 157591^2 + 77119^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=124061.

It is a super-2 number, since 2×30782263442² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30782263442.

It is not an unprimeable number, because it can be changed into a prime (30782263441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 64263359 + ... + 64263837.

Almost surely, 2^30782263442 is an apocalyptic number.

30782263442 is a deficient number, since it is larger than the sum of its proper divisors (24536039395).

30782263442 is an frugal number, since it uses more digits than its factorization.

30782263442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048 (or 525 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 41.

The spelling of 30782263442 in words is "thirty billion, seven hundred eighty-two million, two hundred sixty-three thousand, four hundred forty-two".