3872405712 has 120 divisors (see below), whose sum is σ = 11689850016. Its totient is φ = 1101375744.

The previous prime is 3872405657. The next prime is 3872405729. The reversal of 3872405712 is 2175042783.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 530278 + ... + 537530.

Almost surely, 2^3872405712 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 3872405712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5844925008).

3872405712 is an abundant number, since it is smaller than the sum of its proper divisors (7817444304).

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

3872405712 is a wasteful number, since it uses less digits than its factorization.

3872405712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7505 (or 7492 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 3872405712 is about 62228.6566784146. The cubic root of 3872405712 is about 1570.3397255282.

The spelling of 3872405712 in words is "three billion, eight hundred seventy-two million, four hundred five thousand, seven hundred twelve".