42512226044 has 12 divisors (see below), whose sum is σ = 74544304464. Its totient is φ = 21213853344.

The previous prime is 42512226023. The next prime is 42512226049. The reversal of 42512226044 is 44062221524.

It is a self number, because there is not a number n which added to its sum of digits gives 42512226044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42512226049) 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, 10562657 + ... + 10566680.

It is an arithmetic number, because the mean of its divisors is an integer number (6212025372).

Almost surely, 2^42512226044 is an apocalyptic number.

It is an amenable number.

42512226044 is a deficient number, since it is larger than the sum of its proper divisors (32032078420).

42512226044 is a wasteful number, since it uses less digits than its factorization.

42512226044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21129844 (or 21129842 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 42512226044 its reverse (44062221524), we get a palindrome (86574447568).

The spelling of 42512226044 in words is "forty-two billion, five hundred twelve million, two hundred twenty-six thousand, forty-four".