4445212540052 has 24 divisors (see below), whose sum is σ = 7800656937192. Its totient is φ = 2216460646400.

The previous prime is 4445212540039. The next prime is 4445212540169. The reversal of 4445212540052 is 2500452125444.

It can be written as a sum of positive squares in 4 ways, for example, as 1657795302916 + 2787417237136 = 1287554^2 + 1669556^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4445212539988 and 4445212540015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1558148 + ... + 3364260.

It is an arithmetic number, because the mean of its divisors is an integer number (325027372383).

Almost surely, 2^{4445212540052} is an apocalyptic number.

It is an amenable number.

4445212540052 is a deficient number, since it is larger than the sum of its proper divisors (3355444397140).

4445212540052 is a wasteful number, since it uses less digits than its factorization.

4445212540052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1807819 (or 1807817 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 38.

Adding to 4445212540052 its reverse (2500452125444), we get a palindrome (6945664665496).

The spelling of 4445212540052 in words is "four trillion, four hundred forty-five billion, two hundred twelve million, five hundred forty thousand, fifty-two".