4064433420540 has 96 divisors (see below), whose sum is σ = 11631372318720. Its totient is φ = 1059983090176.

The previous prime is 4064433420539. The next prime is 4064433420547. The reversal of 4064433420540 is 450243344604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4064433420547) 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, 3173224 + ... + 4265936.

It is an arithmetic number, because the mean of its divisors is an integer number (121160128320).

Almost surely, 2^{4064433420540} 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 4064433420540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5815686159360).

4064433420540 is an abundant number, since it is smaller than the sum of its proper divisors (7566938898180).

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

4064433420540 is a wasteful number, since it uses less digits than its factorization.

4064433420540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094091 (or 1094089 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 39.

The spelling of 4064433420540 in words is "four trillion, sixty-four billion, four hundred thirty-three million, four hundred twenty thousand, five hundred forty".