3820979642816 has 42 divisors (see below), whose sum is σ = 8820175911048. Its totient is φ = 1637562702720.

The previous prime is 3820979642803. The next prime is 3820979642861. The reversal of 3820979642816 is 6182469790283.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 609209180 + ... + 609215451.

Almost surely, 2^{3820979642816} is an apocalyptic number.

It is an amenable number.

3820979642816 is an abundant number, since it is smaller than the sum of its proper divisors (4999196268232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3820979642816 is a wasteful number, since it uses less digits than its factorization.

3820979642816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218424657 (or 1218424640 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 65.

The spelling of 3820979642816 in words is "three trillion, eight hundred twenty billion, nine hundred seventy-nine million, six hundred forty-two thousand, eight hundred sixteen".