8019942259 has 6 divisors (see below), whose sum is σ = 9329320644. Its totient is φ = 6874236180.

The previous prime is 8019942247. The next prime is 8019942283. The reversal of 8019942259 is 9522499108.

It is not a de Polignac number, because 8019942259 - 2¹¹ = 8019940211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 163672291 = 8019942259 / (8 + 0 + 1 + 9 + 9 + 4 + 2 + 2 + 5 + 9).

It is not an unprimeable number, because it can be changed into a prime (8019942209) 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 5 ways as a sum of consecutive naturals, for example, 81836097 + ... + 81836194.

It is an arithmetic number, because the mean of its divisors is an integer number (1554886774).

Almost surely, 2^8019942259 is an apocalyptic number.

8019942259 is a deficient number, since it is larger than the sum of its proper divisors (1309378385).

8019942259 is a wasteful number, since it uses less digits than its factorization.

8019942259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163672305 (or 163672298 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 49.

The square root of 8019942259 is about 89554.1303290920. The cubic root of 8019942259 is about 2001.6604759450.

The spelling of 8019942259 in words is "eight billion, nineteen million, nine hundred forty-two thousand, two hundred fifty-nine".