3876011646 has 64 divisors (see below), whose sum is σ = 8669445120. Its totient is φ = 1147063680.

The previous prime is 3876011641. The next prime is 3876011663. The reversal of 3876011646 is 6461106783.

It is a junction number, because it is equal to n+sod(n) for n = 3876011598 and 3876011607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3876011641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 609841 + ... + 616163.

It is an arithmetic number, because the mean of its divisors is an integer number (135460080).

Almost surely, 2^3876011646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3876011646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4334722560).

3876011646 is an abundant number, since it is smaller than the sum of its proper divisors (4793433474).

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

3876011646 is a wasteful number, since it uses less digits than its factorization.

3876011646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6641.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 3876011646 is about 62257.6231958786. The cubic root of 3876011646 is about 1570.8270009765.

The spelling of 3876011646 in words is "three billion, eight hundred seventy-six million, eleven thousand, six hundred forty-six".