42544245205 has 32 divisors (see below), whose sum is σ = 65370919680. Its totient is φ = 25804293120.

The previous prime is 42544245199. The next prime is 42544245281. The reversal of 42544245205 is 50254244524.

It is not a de Polignac number, because 42544245205 - 2²⁹ = 42007374293 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1479060 + ... + 1507549.

It is an arithmetic number, because the mean of its divisors is an integer number (2042841240).

Almost surely, 2^42544245205 is an apocalyptic number.

It is an amenable number.

42544245205 is a deficient number, since it is larger than the sum of its proper divisors (22826674475).

42544245205 is a wasteful number, since it uses less digits than its factorization.

42544245205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2986669.

The product of its (nonzero) digits is 256000, while the sum is 37.

Adding to 42544245205 its reverse (50254244524), we get a palindrome (92798489729).

The spelling of 42544245205 in words is "forty-two billion, five hundred forty-four million, two hundred forty-five thousand, two hundred five".