3861279744 has 352 divisors, whose sum is σ = 12664805376. Its totient is φ = 1021870080.

The previous prime is 3861279727. The next prime is 3861279757. The reversal of 3861279744 is 4479721683.

It is a super-2 number, since 2×3861279744² = 29818962522849411072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18299799 + ... + 18300009.

Almost surely, 2^3861279744 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 3861279744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6332402688).

3861279744 is an abundant number, since it is smaller than the sum of its proper divisors (8803525632).

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

3861279744 is a wasteful number, since it uses less digits than its factorization.

3861279744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 283 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 51.

The square root of 3861279744 is about 62139.1965187835. The cubic root of 3861279744 is about 1568.8343470169.

The spelling of 3861279744 in words is "three billion, eight hundred sixty-one million, two hundred seventy-nine thousand, seven hundred forty-four".