2686204420642 has 16 divisors (see below), whose sum is σ = 4031014321152. Its totient is φ = 1342533110400.

The previous prime is 2686204420579. The next prime is 2686204420643. The reversal of 2686204420642 is 2460244026862.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2686204420592 and 2686204420601.

It is not an unprimeable number, because it can be changed into a prime (2686204420643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48634642 + ... + 48689842.

It is an arithmetic number, because the mean of its divisors is an integer number (251938395072).

Almost surely, 2^{2686204420642} is an apocalyptic number.

2686204420642 is a deficient number, since it is larger than the sum of its proper divisors (1344809900510).

2686204420642 is a wasteful number, since it uses less digits than its factorization.

2686204420642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65073.

The product of its (nonzero) digits is 1769472, while the sum is 46.

The spelling of 2686204420642 in words is "two trillion, six hundred eighty-six billion, two hundred four million, four hundred twenty thousand, six hundred forty-two".