3842561817616 has 80 divisors (see below), whose sum is σ = 7911641122560. Its totient is φ = 1802786163840.

The previous prime is 3842561817583. The next prime is 3842561817641. The reversal of 3842561817616 is 6167181652483.

It is an unprimeable number.

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, 228565851 + ... + 228582661.

It is an arithmetic number, because the mean of its divisors is an integer number (98895514032).

Almost surely, 2^{3842561817616} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3842561817616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3955820561280).

3842561817616 is an abundant number, since it is smaller than the sum of its proper divisors (4069079304944).

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

3842561817616 is a wasteful number, since it uses less digits than its factorization.

3842561817616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23972 (or 23966 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 58.

The spelling of 3842561817616 in words is "three trillion, eight hundred forty-two billion, five hundred sixty-one million, eight hundred seventeen thousand, six hundred sixteen".