3891796416 has 112 divisors (see below), whose sum is σ = 11462004000. Its totient is φ = 1294903296.

The previous prime is 3891796387. The next prime is 3891796421. The reversal of 3891796416 is 6146971983.

3891796416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1126660 + ... + 1130108.

Almost surely, 2^3891796416 is an apocalyptic number.

3891796416 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3891796416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5731002000).

3891796416 is an abundant number, since it is smaller than the sum of its proper divisors (7570207584).

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

3891796416 is a wasteful number, since it uses less digits than its factorization.

3891796416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4123 (or 4107 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 3891796416 is about 62384.2641697408. The cubic root of 3891796416 is about 1572.9564717086.

The spelling of 3891796416 in words is "three billion, eight hundred ninety-one million, seven hundred ninety-six thousand, four hundred sixteen".