245515311044 has 24 divisors (see below), whose sum is σ = 452282359200. Its totient is φ = 116292274560.

The previous prime is 245515311037. The next prime is 245515311053. The reversal of 245515311044 is 440113515542.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 245515310995 and 245515311013.

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, 2806079 + ... + 2892249.

It is an arithmetic number, because the mean of its divisors is an integer number (18845098300).

Almost surely, 2^245515311044 is an apocalyptic number.

It is an amenable number.

245515311044 is a deficient number, since it is larger than the sum of its proper divisors (206767048156).

245515311044 is a wasteful number, since it uses less digits than its factorization.

245515311044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123683 (or 123681 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 245515311044 its reverse (440113515542), we get a palindrome (685628826586).

The spelling of 245515311044 in words is "two hundred forty-five billion, five hundred fifteen million, three hundred eleven thousand, forty-four".