3899256144432 has 480 divisors, whose sum is σ = 12156561930240. Its totient is φ = 1071321292800.

The previous prime is 3899256144391. The next prime is 3899256144467. The reversal of 3899256144432 is 2344416529983.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 700924083 + ... + 700929645.

It is an arithmetic number, because the mean of its divisors is an integer number (25326170688).

Almost surely, 2^{3899256144432} 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 3899256144432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6078280965120).

3899256144432 is an abundant number, since it is smaller than the sum of its proper divisors (8257305785808).

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

3899256144432 is a wasteful number, since it uses less digits than its factorization.

3899256144432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5873 (or 5856 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 60.

The spelling of 3899256144432 in words is "three trillion, eight hundred ninety-nine billion, two hundred fifty-six million, one hundred forty-four thousand, four hundred thirty-two".