7881985323 has 12 divisors (see below), whose sum is σ = 11388159640. Its totient is φ = 5253240096.

The previous prime is 7881985303. The next prime is 7881985333. The reversal of 7881985323 is 3235891887.

It is not a de Polignac number, because 7881985323 - 2⁹ = 7881984811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7881985323.

It is not an unprimeable number, because it can be changed into a prime (7881985303) 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 in 11 ways as a sum of consecutive naturals, for example, 82261 + ... + 150102.

Almost surely, 2^7881985323 is an apocalyptic number.

7881985323 is a deficient number, since it is larger than the sum of its proper divisors (3506174317).

7881985323 is a wasteful number, since it uses less digits than its factorization.

7881985323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236138 (or 236135 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 7881985323 is about 88780.5458588761. The cubic root of 7881985323 is about 1990.1166840666.

The spelling of 7881985323 in words is "seven billion, eight hundred eighty-one million, nine hundred eighty-five thousand, three hundred twenty-three".