245242143044 has 24 divisors (see below), whose sum is σ = 439888501248. Its totient is φ = 119563076160.

The previous prime is 245242143037. The next prime is 245242143049. The reversal of 245242143044 is 440341242542.

It is a junction number, because it is equal to n+sod(n) for n = 245242142995 and 245242143013.

It is not an unprimeable number, because it can be changed into a prime (245242143049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126932 + ... + 711755.

It is an arithmetic number, because the mean of its divisors is an integer number (18328687552).

Almost surely, 2^245242143044 is an apocalyptic number.

It is an amenable number.

245242143044 is a deficient number, since it is larger than the sum of its proper divisors (194646358204).

245242143044 is a wasteful number, since it uses less digits than its factorization.

245242143044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840515 (or 840513 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 35.

Adding to 245242143044 its reverse (440341242542), we get a palindrome (685583385586).

The spelling of 245242143044 in words is "two hundred forty-five billion, two hundred forty-two million, one hundred forty-three thousand, forty-four".