4040621041544 has 16 divisors (see below), whose sum is σ = 7576188122700. Its totient is φ = 2020304208832.

The previous prime is 4040621041519. The next prime is 4040621041547. The reversal of 4040621041544 is 4451401260404.

It can be written as a sum of positive squares in 2 ways, for example, as 3996952580644 + 43668460900 = 1999238^2 + 208970^2 .

It is not an unprimeable number, because it can be changed into a prime (4040621041547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3004634 + ... + 4136310.

Almost surely, 2^{4040621041544} is an apocalyptic number.

It is an amenable number.

4040621041544 is a deficient number, since it is larger than the sum of its proper divisors (3535567081156).

4040621041544 is a wasteful number, since it uses less digits than its factorization.

4040621041544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577992 (or 1577988 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 35.

The spelling of 4040621041544 in words is "four trillion, forty billion, six hundred twenty-one million, forty-one thousand, five hundred forty-four".