4044213539802 has 48 divisors (see below), whose sum is σ = 9287637788520. Its totient is φ = 1267441437696.

The previous prime is 4044213539797. The next prime is 4044213539803. The reversal of 4044213539802 is 2089353124404.

4044213539802 is a `hidden beast` number, since 4 + 0 + 44 + 213 + 5 + 398 + 0 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3072311345601 + 971902194201 = 1752801^2 + 985851^2 .

It is not an unprimeable number, because it can be changed into a prime (4044213539803) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6642477 + ... + 7225712.

Almost surely, 2^{4044213539802} is an apocalyptic number.

4044213539802 is an abundant number, since it is smaller than the sum of its proper divisors (5243424248718).

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

4044213539802 is a wasteful number, since it uses less digits than its factorization.

4044213539802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13869167 (or 13869164 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 4044213539802 in words is "four trillion, forty-four billion, two hundred thirteen million, five hundred thirty-nine thousand, eight hundred two".