3994185776000 has 1024 divisors, whose sum is σ = 12579390720000. Its totient is φ = 1230269644800.

The previous prime is 3994185775999. The next prime is 3994185776011. The reversal of 3994185776000 is 6775814993.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3641007452 + ... + 3641008548.

It is an arithmetic number, because the mean of its divisors is an integer number (12284561250).

Almost surely, 2^{3994185776000} 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 3994185776000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6289695360000).

3994185776000 is an abundant number, since it is smaller than the sum of its proper divisors (8585204944000).

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

3994185776000 is a wasteful number, since it uses less digits than its factorization.

3994185776000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240 (or 1218 counting only the distinct ones).

The product of its (nonzero) digits is 11430720, while the sum is 59.

The spelling of 3994185776000 in words is "three trillion, nine hundred ninety-four billion, one hundred eighty-five million, seven hundred seventy-six thousand".