42811381249 has 16 divisors (see below), whose sum is σ = 53026559488. Its totient is φ = 33656980032.

The previous prime is 42811381241. The next prime is 42811381289. The reversal of 42811381249 is 94218311824.

42811381249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42811381249 - 2³ = 42811381241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42811381241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1483977 + ... + 1512550.

It is an arithmetic number, because the mean of its divisors is an integer number (3314159968).

Almost surely, 2^42811381249 is an apocalyptic number.

It is an amenable number.

42811381249 is a deficient number, since it is larger than the sum of its proper divisors (10215178239).

42811381249 is a wasteful number, since it uses less digits than its factorization.

42811381249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2996704.

The product of its digits is 110592, while the sum is 43.

The spelling of 42811381249 in words is "forty-two billion, eight hundred eleven million, three hundred eighty-one thousand, two hundred forty-nine".