3915144256 has 112 divisors (see below), whose sum is σ = 8494735360. Its totient is φ = 1783503360.

The previous prime is 3915144229. The next prime is 3915144257. The reversal of 3915144256 is 6524415193.

It is not an unprimeable number, because it can be changed into a prime (3915144257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10667785 + ... + 10668151.

Almost surely, 2^3915144256 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 3915144256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4247367680).

3915144256 is an abundant number, since it is smaller than the sum of its proper divisors (4579591104).

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

3915144256 is a wasteful number, since it uses less digits than its factorization.

3915144256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712 (or 702 counting only the distinct ones).

The product of its digits is 129600, while the sum is 40.

The square root of 3915144256 is about 62571.1135908576. The cubic root of 3915144256 is about 1576.0957194047.

The spelling of 3915144256 in words is "three billion, nine hundred fifteen million, one hundred forty-four thousand, two hundred fifty-six".