3895043986944 has 480 divisors, whose sum is σ = 12837554915328. Its totient is φ = 1126121472000.

The previous prime is 3895043986907. The next prime is 3895043986963. The reversal of 3895043986944 is 4496893405983.

3895043986944 is a `hidden beast` number, since 3 + 8 + 9 + 504 + 39 + 86 + 9 + 4 + 4 = 666.

It is a super-2 number, since 2×3895043986944² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 111546832 + ... + 111581744.

Almost surely, 2^{3895043986944} 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 3895043986944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6418777457664).

3895043986944 is an abundant number, since it is smaller than the sum of its proper divisors (8942510928384).

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

3895043986944 is a wasteful number, since it uses less digits than its factorization.

3895043986944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35050 (or 35031 counting only the distinct ones).

The product of its (nonzero) digits is 806215680, while the sum is 72.

The spelling of 3895043986944 in words is "three trillion, eight hundred ninety-five billion, forty-three million, nine hundred eighty-six thousand, nine hundred forty-four".