2018878212659 has 16 divisors (see below), whose sum is σ = 2520505268736. Its totient is φ = 1570987915200.

The previous prime is 2018878212643. The next prime is 2018878212661. The reversal of 2018878212659 is 9562128788102.

It is a happy number.

It is not a de Polignac number, because 2018878212659 - 2⁴ = 2018878212643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2018878212598 and 2018878212607.

It is not an unprimeable number, because it can be changed into a prime (2018878212959) 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 15 ways as a sum of consecutive naturals, for example, 17976482 + ... + 18088439.

It is an arithmetic number, because the mean of its divisors is an integer number (157531579296).

Almost surely, 2^{2018878212659} is an apocalyptic number.

2018878212659 is a deficient number, since it is larger than the sum of its proper divisors (501627056077).

2018878212659 is a wasteful number, since it uses less digits than its factorization.

2018878212659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36065666.

The product of its (nonzero) digits is 7741440, while the sum is 59.

The spelling of 2018878212659 in words is "two trillion, eighteen billion, eight hundred seventy-eight million, two hundred twelve thousand, six hundred fifty-nine".