2042646466879 has 8 divisors (see below), whose sum is σ = 2099157013520. Its totient is φ = 1986204545856.

The previous prime is 2042646466859. The next prime is 2042646466933. The reversal of 2042646466879 is 9786646462402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2042646466879 - 2³⁹ = 1492890652991 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 2042646466879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042646466829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17096049 + ... + 17215114.

It is an arithmetic number, because the mean of its divisors is an integer number (262394626690).

Almost surely, 2^{2042646466879} is an apocalyptic number.

2042646466879 is a deficient number, since it is larger than the sum of its proper divisors (56510546641).

2042646466879 is a wasteful number, since it uses less digits than its factorization.

2042646466879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34312809.

The product of its (nonzero) digits is 167215104, while the sum is 64.

The spelling of 2042646466879 in words is "two trillion, forty-two billion, six hundred forty-six million, four hundred sixty-six thousand, eight hundred seventy-nine".