3820048642778 has 8 divisors (see below), whose sum is σ = 5730200669172. Its totient is φ = 1909981753056.

The previous prime is 3820048642771. The next prime is 3820048642783. The reversal of 3820048642778 is 8772468400283.

It can be written as a sum of positive squares in 2 ways, for example, as 3808184422849 + 11864219929 = 1951457^2 + 108923^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3820048642771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21171875 + ... + 21351542.

Almost surely, 2^{3820048642778} is an apocalyptic number.

3820048642778 is a deficient number, since it is larger than the sum of its proper divisors (1910152026394).

3820048642778 is a wasteful number, since it uses less digits than its factorization.

3820048642778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42568336.

The product of its (nonzero) digits is 28901376, while the sum is 59.

The spelling of 3820048642778 in words is "three trillion, eight hundred twenty billion, forty-eight million, six hundred forty-two thousand, seven hundred seventy-eight".